Psychrometers/Hygro-Thermometers

RH25 Heat Index Psychrometer by Extech

Extech's pocket-sized Heat Index Psychrometer Pen easily monitors Heat Index during hot humid days to prevent heat stroke during outdoor activities, sporting events or, indoor workplace. Its pen-sized design makes it convenient to fit into your pocket and carry it wherever you go!

Features

• Heat Index measures how hot it feels when Humidity is combined with temperature, air movement, and radiant heat. Wet Bulb Globe Temperature (WBGT) considers the effects of temperature, humidity, and direct or radiant sunlight
• Built-in multiparameter sensor measures Heat Index, WBGT, Humidity, Ambient Temperature, Temperature, Dew Point and Wet Bulb
• User Programmable Heat Index/WBGT alarm
• Min/Max/Average
• Data Hold
• Auto power off with disable
• Complete with CR2032 battery

42275 Temperature/Humidity Datalogger Kit with PC Interface by Extech

Compact, powerful and easy-to-use dataloggers record up to 16,000 readings. Models to choose from: Temperature (42260/42265) or Temperature and Relative Humidity Datalogger (42270/42275). Multiple Dataloggers can be programmed and data downloaded from one single docking station. USB cable and software included to easily download collected data to your PC for further analysis.

Features

• Model 42265 — Temperature Datalogger kit records up to 8000 readings
• Model 42275 — Temperature and Humidity Datalogger kit records up to 16,000 readings
• Use in storage containers, shipping vans, and freezers
• Logs data for days, weeks or months (~1yr battery life)
• Multiple Dataloggers (42260 or 42270) can be programmed and data downloaded from one single docking station
• Programmable sampling rate from 1sec to 2hrs plus Hi/Lo limits with alarm indication Program the logger, analyze and store data using Windows® XP, Win 7, Win 8 compatible software
• View temperature (42265) or both humidity and temperature (42275) on LCD display
• Three start methods: Scheduled, immediate, magnetic
• Real time clock stores date & time with data
• Waterproof: 42260 to IP65, Water-resistant: 42270
• Kits include one datalogger, docking station with USB cable, and software

Applications

• Clean rooms
• Freezer
• Shipping crates
• Storage areas
• Refrigerator
• Shipping vans
• Cargo vessels
• Warehouses

42280 Temperature and Humidity Datalogger by Extech

Features

• Triple LCD displays Humidity, Temperature, and date (Year, Month, and Day)
• Programmable from keypad or PC
• Selectable data sampling rate
• User programmable audible and visual alarms
• Wall, desktop, or tripod mount
• Calibration via optional salt bottles
• Complete with Windows® compatible software, USB cable, Universal AC adaptor, and four AA batteries

445580 Humidity/Temperature Pen by Extech

Features

• Dual LCD display for Temperature, Humidity, and advanced function indication
• Measures Temperature (°C/°F) and Relative Humidity simultaneously
• Built-in Temperature and Humidity sensors for convenient operation
• Max/Min memory functions for both Temperature & Relative Humidity
• Built-in self calibration utility with optional RH calibration bottles
• Data Hold for freezing the LCD display status
• Complete with pocket clip and 3V lithium battery
• Optional kit includes 33% and 75% RH Calibration Standards and hard vinyl carrying case

445580 Humidity/Temperature Pen with NIST by Extech

Features

• Dual LCD display for Temperature, Humidity, and advanced function indication
• Measures Temperature (°C/°F) and Relative Humidity simultaneously
• Built-in Temperature and Humidity sensors for convenient operation
• Max/Min memory functions for both Temperature & Relative Humidity
• Built-in self calibration utility with optional RH calibration bottles
• Data Hold for freezing the LCD display status
• Complete with pocket clip and 3V lithium battery
• Optional kit includes 33% and 75% RH Calibration Standards and hard vinyl carrying case

EA20 EasyView™ Hygro-Thermometer by Extech

Features

• Compact and rugged design features large display and bargraph
• Display any two parameters (Temperature and Humidity or Dew Point, or Wet Bulb) simultaneously
• Min/Max function stores & recalls highest and lowest readings
• Timer function displays the elapsed time (mins : secs and day : hour) to the minimum and maximum readings
• Programmable auto power off time frame
• Remote capacitance sensor with 39" (1m) coiled cable
• Switchable °C/°F temperature units
• Data Hold function freezes reading on display
• Auto power off to save battery life
• Low battery and overrange indication
• Complete with built-in stand, protective holster, probe and 6 AAA batteries

Applications

• Monitor Relative Humidity and Temperature in factories, clean rooms, offices, and greenhouses
• Produce reports of overnight or long term humidity and temperature fluctuations

EA20 EasyView™ Hygro-Thermometer with NIST by Extech

Features

• Compact and rugged design features large display and bargraph
• Display any two parameters (Temperature and Humidity or Dew Point, or Wet Bulb) simultaneously
• Min/Max function stores & recalls highest and lowest readings
• Timer function displays the elapsed time (mins : secs and day : hour) to the minimum and maximum readings
• Programmable auto power off time frame
• Remote capacitance sensor with 39" (1m) coiled cable
• Switchable °C/°F temperature units
• Data Hold function freezes reading on display
• Auto power off to save battery life
• Low battery and overrange indication
• Complete with built-in stand, protective holster, probe and 6 AAA batteries

Applications

• Monitor Relative Humidity and Temperature in factories, clean rooms, offices, and greenhouses
• Produce reports of overnight or long term humidity and temperature fluctuations

EA25 EasyView Hygro-Thermometer and Datalogger by Extech

Features

• Datalogs up to 15,000 records plus automatic timer function
• Built-in RS-232 PC serial interface comes complete with Windows® 95/98/NT/2000/ME/XP compatible software and optically isolated RS-232 cable
• Compact and rugged design features large display and bargraph
• Display any two parameters (Temperature and Humidity or Dew Point, or Wet Bulb) simultaneously
• Min/Max function stores & recalls highest and lowest readings
• Timer function displays the elapsed time (mins : secs and day : hour) to the minimum and maximum readings
• Programmable auto power off time frame
• Remote capacitance sensor with 39" (1m) coiled cable
• Switchable °C/°F temperature units
• Data Hold function freezes reading on display
• Auto power off to save battery life
• Low battery and overrange indication
• Complete with built-in stand, protective holster, probe and 6 AAA batteries

Applications

• Monitor Relative Humidity and Temperature in factories, clean rooms, offices, and greenhouses
• Produce reports of overnight or long term humidity and temperature fluctuations

EA25 EasyView Hygro-Thermometer and Datalogger with NIST by Extech

Features

• Datalogs up to 15,000 records plus automatic timer function
• Built-in RS-232 PC serial interface comes complete with Windows® 95/98/NT/2000/ME/XP compatible software and optically isolated RS-232 cable
• Compact and rugged design features large display and bargraph
• Display any two parameters (Temperature and Humidity or Dew Point, or Wet Bulb) simultaneously
• Min/Max function stores & recalls highest and lowest readings
• Timer function displays the elapsed time (mins : secs and day : hour) to the minimum and maximum readings
• Programmable auto power off time frame
• Remote capacitance sensor with 39" (1m) coiled cable
• Switchable °C/°F temperature units
• Data Hold function freezes reading on display
• Auto power off to save battery life
• Low battery and overrange indication
• Complete with built-in stand, protective holster, probe and 6 AAA batteries

Applications

• Monitor Relative Humidity and Temperature in factories, clean rooms, offices, and greenhouses
• Produce reports of overnight or long term humidity and temperature fluctuations

HD500 Psychrometer with InfraRed Thermometer by Extech

Features

• Built-in InfraRed Thermometer for non-contact temperature measurement to 932°F (500°C) with 30:1 distance to target ratio
• Type K Temperature function for contact temperature measurement to 2501°F (1372°C)
• Highest 2% RH accuracy
• Heavy Duty rugged double molded housing with large triple LCD backlit display
• Auto power off
• USB port includes PC software
• Includes Windows® compatible software with USB cable, Type K bead wire temperature probe, built-in stand, hard carrying case, and 9V battery

HD500 Psychrometer with InfraRed Thermometer with NIST by Extech

Features

• Built-in InfraRed Thermometer for non-contact temperature measurement to 932°F (500°C) with 30:1 distance to target ratio
• Type K Temperature function for contact temperature measurement to 2501°F (1372°C)
• Highest 2% RH accuracy
• Heavy Duty rugged double molded housing with large triple LCD backlit display
• Auto power off
• USB port includes PC software
• Includes Windows® compatible software with USB cable, Type K bead wire temperature probe, built-in stand, hard carrying case, and 9V battery

HD500 Psychrometer with InfraRed Thermometer with Limited NIST by Extech

Features

• Built-in InfraRed Thermometer for non-contact temperature measurement to 932°F (500°C) with 30:1 distance to target ratio
• Type K Temperature function for contact temperature measurement to 2501°F (1372°C)
• Highest 2% RH accuracy
• Heavy Duty rugged double molded housing with large triple LCD backlit display
• Auto power off
• USB port includes PC software
• Includes Windows® compatible software with USB cable, Type K bead wire temperature probe, built-in stand, hard carrying case, and 9V battery

HT30 Heat Stress WBGT (Wet Bulb Globe Temperature) Meter by Extech

Features

• Heat Stress Index measures how hot it feels when humidity is combined with temperature, air movement, and radiant heat
• Black Globe Temperature (TG) monitors the effects of direct solar radiation on an exposed surface
• Air Temperature (TA) plus Relative Humidity (RH)
• Selectable units of °F and °C
• In/Out Function displays the WBGT value with or without direct sun exposure
• Auto Power Off with override
• Built-in RS-232 interface with optional Windows® compatible software
• Complete with two AAA batteries

Applications

• Athletic training
• Monitor outdoor working conditions
• Manufacturing

HT30 Heat Stress WBGT (Wet Bulb Globe Temperature) Meter with NIST by Extech

Features

• Heat Stress Index measures how hot it feels when humidity is combined with temperature, air movement, and radiant heat
• Black Globe Temperature (TG) monitors the effects of direct solar radiation on an exposed surface
• Air Temperature (TA) plus Relative Humidity (RH)
• Selectable units of °F and °C
• In/Out Function displays the WBGT value with or without direct sun exposure
• Auto Power Off with override
• Built-in RS-232 interface with optional Windows® compatible software
• Complete with two AAA batteries

Applications

• Athletic training
• Monitor outdoor working conditions
• Manufacturing

MO280-RK Restoration Contractor's Kit by Extech

Kit includes:

Model MO280 Pinless Moisture Meter

• Select from 10 different wood types
• Displays %moisture from 0 to 99%
• Measurement depth to 0.75" (22mm) below the surface

Model MO220 Wood Moisture Meter

• Memory contains 8 wood groups with calibrations for approximately 170 species of wood
• Measures wood moisture from 6 to 99.9%
• Measurements can be taken using the integral pin electrodes or a heavy duty remote probe (included)

Model RH490 Precision Hygro-Thermometer

• Measures Temperature, Humidity, Dew Point, Wet Bulb, Absolute Humidity, GPP (grains per pound/grains per kilogram)
• Less than 30 second RH response time with 2%RH accuracy

Model RHT10 Humidity/Temperature USB Datalogger

• Datalogs 16,000 RH and 16,000 Temperature readings
• User-programmable sampling rate and alarm thresholds
• RHT10-SW software included for GPP calculations and USB interface for data download

• Kit is supplied in a rugged heavy duty hard carrying case that provides protection and organization for the meters and accessories whenever they are needed

MO280-RK-i5 Thermal Imaging Technician's Kit by Extech

Kit includes:

Model IRC40 i5 Compact IR Camera

• Affordable InfraRed Camera with high quality image, focus free viewing, and 5000 image miniSD card storage
• High 2% accuracy and 0.1°C thermal sensitivity
• Extremely lightweight (12 ounces) resulting in less user fatigue

Model MO280 Pinless Moisture Meter

• Select from 10 different wood types
• Displays %moisture from 0 to 99%
• Measurement depth to 0.75" (22mm) below the surface

Model MO220 Wood Moisture Meter

• Memory contains 8 wood groups with calibrations for approximately 170 species of wood
• Measures wood moisture from 6 to 99.9%
• Measurements can be taken using the integral pin electrodes or a heavy duty remote probe (included)

Model RH490 Precision Hygro-Thermometer

• Measures Temperature, Humidity, Dew Point, Wet Bulb, Absolute Humidity, GPP (grains per pound/grains per kilogram)
• Less than 30 second RH response time with 2%RH accuracy

Model RHT10 Humidity/Temperature USB Datalogger

• Datalogs 16,000 RH and 16,000 Temperature readings
• User-programmable sampling rate and alarm thresholds
• RHT10-SW software included for GPP calculations and USB interface for data download

• Kit is supplied in a rugged heavy duty hard carrying case that provides protection and organization for the meters and accessories whenever they are needed

RH101 Hygro-Thermometer + InfraRed Thermometer by Extech

Features

• Combination Humidity meter plus InfraRed Thermometer features a super large backlit dual display
• Primary and Secondary displays - Primary display is user selectable for IR or Humidity; Secondary always displays ambient temperature
• InfraRed thermometer has built in laser pointer and has an 8:1 distance to target ratio
• MAX and Data Hold for all functions
• Remote humidity sensor with 39" (1m) coiled cable provides readings for both humidity and ambient temperature
• Switchable °C/°F temperature units
• Auto Power off to save battery life
• Low battery and overrange indication
• Complete with built-in stand, protective holster, Humidity/Temperature probe, 9V battery, and carrying case

Applications

• Monitor Relative Humidity and Temperature in factories, clean rooms, offices, and greenhouses
• Non-contact InfraRed surface temperature measurements in hard to reach areas such as heating and air conditioning ducts

RH300 Hygro-Thermometer Psychrometer by Extech

Features

• Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
• Wet bulb measurements without slinging
• Calculates T1-T2 differential (Air Temperature minus External Probe Temperature) using optional probe (TP890) and T2-Dew Point
• Unique sensor cap design twists to closed position for protection during storage
• Switchable °F/°C temperature units with 0.1° resolution
• Data Hold freezes current reading on display
• Max/Min readings
• Auto power off to save battery life
• RH300 complete with 2 AAA batteries
• Optional external temperature probe (TP890)
• Optional kit RH305 includes RH300, temperature probe, 33% and 75% calibration bottles, and carrying case

RH300 Hygro-Thermometer Psychrometer with NIST by Extech

Features

• Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
• Wet bulb measurements without slinging
• Calculates T1-T2 differential (Air Temperature minus External Probe Temperature) using optional probe (TP890) and T2-Dew Point
• Unique sensor cap design twists to closed position for protection during storage
• Switchable °F/°C temperature units with 0.1° resolution
• Data Hold freezes current reading on display
• Max/Min readings
• Auto power off to save battery life
• RH300 complete with 2 AAA batteries
• Optional external temperature probe (TP890)
• Optional kit RH305 includes RH300, temperature probe, 33% and 75% calibration bottles, and carrying case

RH300-CAL Humidity Calibration Kit by Extech

Features

• Bottles designed with small opening for snugged fit of the sensor
• Includes 33%RH and 75%RH calibration bottles

RH305 Hygro-Thermometer Psychrometer Kit by Extech

Features

• Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
• Wet bulb measurements without slinging
• Calculates T1-T2 differential (Air Temperature minus External Probe Temperature) using optional probe (TP890) and T2-Dew Point
• Unique sensor cap design twists to closed position for protection during storage
• Switchable °F/°C temperature units with 0.1° resolution
• Data Hold freezes current reading on display
• Max/Min readings
• Auto power off to save battery life
• RH300 complete with 2 AAA batteries
• Optional external temperature probe (TP890)
• Optional kit RH305 includes RH300, temperature probe, 33% and 75% calibration bottles, and carrying case

RH305 Hygro-Thermometer Psychrometer Kit with NIST by Extech

Features

• Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
• Wet bulb measurements without slinging
• Calculates T1-T2 differential (Air Temperature minus External Probe Temperature) using optional probe (TP890) and T2-Dew Point
• Unique sensor cap design twists to closed position for protection during storage
• Switchable °F/°C temperature units with 0.1° resolution
• Data Hold freezes current reading on display
• Max/Min readings
• Auto power off to save battery life
• RH300 complete with 2 AAA batteries
• Optional external temperature probe (TP890)
• Optional kit RH305 includes RH300, temperature probe, 33% and 75% calibration bottles, and carrying case

RH350 Dual Input Hygro-Thermometer Psychrometer by Extech

Features

• Superheat differential measurements: T1-T2, Air-T1, T1-Dewpoint
• Dual Type K external temperature probe inputs (T1, T2)
• Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or External Probe Temperatures
• Built-in RS-232 interface — uses optional Windows® 95/98/2000/ME/NT/XP compatible software
• Retrieve Max/Min readings with data and time plus Average function
• Real time clock
• Triple display with backlighting
• Unique sensor cap design twists to closed position for protection during storage
• Switchable °F/°C temperature units with 0.1° resolution
• Data Hold freezes current reading on display
• Auto power off to save battery life
• Complete with two Type K bead wire temperature probes and 4 AAA batteries

RH350 Dual Input Hygro-Thermometer Psychrometer with NIST by Extech

Features

• Superheat differential measurements: T1-T2, Air-T1, T1-Dewpoint
• Dual Type K external temperature probe inputs (T1, T2)
• Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or External Probe Temperatures
• Built-in RS-232 interface — uses optional Windows® 95/98/2000/ME/NT/XP compatible software
• Retrieve Max/Min readings with data and time plus Average function
• Real time clock
• Triple display with backlighting
• Unique sensor cap design twists to closed position for protection during storage
• Switchable °F/°C temperature units with 0.1° resolution
• Data Hold freezes current reading on display
• Auto power off to save battery life
• Complete with two Type K bead wire temperature probes and 4 AAA batteries

RH390 Precision Psychrometer by Extech

Features

• Dual backlit display
• Simultaneous display of: Humidity/Temperature; Humidity/Dew Point; Humidity/Wet Bulb
• Slim design with rubberized sides for better grip and for one hand operation
• Data Hold and Min/Max functions
• Auto power off with disable and low battery indicator
• Complete with carrying case and 9V battery

RH390 Precision Psychrometer with NIST by Extech

Features

• Dual backlit display
• Simultaneous display of: Humidity/Temperature; Humidity/Dew Point; Humidity/Wet Bulb
• Slim design with rubberized sides for better grip and for one hand operation
• Data Hold and Min/Max functions
• Auto power off with disable and low battery indicator
• Complete with carrying case and 9V battery

RH401 Digital Psychrometer + InfraRed Thermometer by Extech

Features

• Triple display with backlighting: View Air temp+RH+surface temp; View Dew Point+RH+surface temp; View Wet Bulb+RH+surface temp
• InfraRed Thermometer with Built-in laser pointer, 8:1 distance to target ratio, Adjustable Emissivity from 0.3 to 1.0
• Precision humidity capacitance sensor is retractable for protection during transportation and storage
• Calculates T1 (IR Surface Temperature) - DP (Dew Point) differential
• Programmable Auto power off and Low battery indication
• Over-range/under-range alert indicator
• Built-in RS-232 interface for capturing readings on a PC
• RH401 complete with 4 AAA batteries and carrying case
• Optional RH405 kit includes meter, 33% and 75% calibration bottles, RS-232 cable, 4 AAA batteries and carrying case

Applications

• Monitor Wet Bulb, Dew Point, Relative Humidity and Temperature in factories, clean rooms, offices, and greenhouses
• Non-contact InfraRed surface temperature measurements in hard to reach areas such as heating and air conditioning duct
• Humdity monitoring in schools, offices and manufacturing or storage areas

RH490 Precision Hygro-Thermometer by Extech

Features

• Less than 30 second RH response time
• Water vapor in GPP (g/kg)
• Dual backlit display
• Simultaneous display of: Humidity or GPP (g/kg) plus Temperature; Humidity or GPP (g/kg) plus Dew Point; Humidity or GPP (g/kg) plus Wet Bulb
• Slim design with rubberized sides for better grip and for one hand operation
• Data Hold and Min/Max functions
• Auto power off with disable and low battery indicator
• Complete with carrying case and 9V battery

RH490 Precision Hygro-Thermometer with NIST by Extech

Features

• Less than 30 second RH response time
• Water vapor in GPP (g/kg)
• Dual backlit display
• Simultaneous display of: Humidity or GPP (g/kg) plus Temperature; Humidity or GPP (g/kg) plus Dew Point; Humidity or GPP (g/kg) plus Wet Bulb
• Slim design with rubberized sides for better grip and for one hand operation
• Data Hold and Min/Max functions
• Auto power off with disable and low battery indicator
• Complete with carrying case and 9V battery

RH520A Humidity + Temperature Chart Recorder with Detachable Probe by Extech

Features

• Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date
• Measures Humidity (10 to 95%RH) and Temperature (-20.0°F to 140.0°F) plus included LabVIEW™-based software calculates and graphs Dew Point, Wet Bulb, and GPP (grains per pound)
• Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
• Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis
• LCD indicates percentage of memory remaining
• Replaceable probe does not require recalibration
• Detachable probe extends up to 1 meter for measurements in closed environments
• Audible and visual alarm with Hi/Low setpoints
• Output socket used with optional external alarm module
• Scroll the cursor to display selected data recorded
• Desk or wall mount
• Complete with built-in stand, detachable probe with 3ft (1m) cable, RS232 cable, RS-232 To USB Adaptor, LabView-based PC software, 100-240VAC 50/60Hz adaptor, and 3 AA batteries

Applications

• Monitor and record Laboratory or clean Room temperature and humidity history
• Record process conditions
• Generate warning when conditions are outside required limits
• Monitor controlled environment areas such as freezers, storage areas and other critical areas
• Store humidity and temperature historical data for report generation

RH520A Humidity + Temperature Chart Recorder with Detachable Probe with NIST by Extech

Features

• Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date
• Measures Humidity (10 to 95%RH) and Temperature (-20.0°F to 140.0°F) plus included LabVIEW™-based software calculates and graphs Dew Point, Wet Bulb, and GPP (grains per pound)
• Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
• Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis
• LCD indicates percentage of memory remaining
• Replaceable probe does not require recalibration
• Detachable probe extends up to 1 meter for measurements in closed environments
• Audible and visual alarm with Hi/Low setpoints
• Output socket used with optional external alarm module
• Scroll the cursor to display selected data recorded
• Desk or wall mount
• Complete with built-in stand, detachable probe with 3ft (1m) cable, RS232 cable, RS-232 To USB Adaptor, LabView-based PC software, 100-240VAC 50/60Hz adaptor, and 3 AA batteries

Applications

• Monitor and record Laboratory or clean Room temperature and humidity history
• Record process conditions
• Generate warning when conditions are outside required limits
• Monitor controlled environment areas such as freezers, storage areas and other critical areas
• Store humidity and temperature historical data for report generation

RH520A-220 Humidity + Temperature Chart Recorder with Detachable Probe (220V) by Extech

Features

• Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date
• Measures Humidity (10 to 95%RH) and Temperature (-20.0°F to 140.0°F) plus included LabVIEW™-based software calculates and graphs Dew Point, Wet Bulb, and GPP (grains per pound)
• Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
• Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis
• LCD indicates percentage of memory remaining
• Replaceable probe does not require recalibration
• Detachable probe extends up to 1 meter for measurements in closed environments
• Audible and visual alarm with Hi/Low setpoints
• Output socket used with optional external alarm module
• Scroll the cursor to display selected data recorded
• Desk or wall mount
• Complete with built-in stand, detachable probe with 3ft (1m) cable, RS232 cable, RS-232 To USB Adaptor, LabView-based PC software, 100-240VAC 50/60Hz adaptor, and 3 AA batteries

Applications

• Monitor and record Laboratory or clean Room temperature and humidity history
• Record process conditions
• Generate warning when conditions are outside required limits
• Monitor controlled environment areas such as freezers, storage areas and other critical areas
• Store humidity and temperature historical data for report generation

RH520A-220 Humidity + Temperature Chart Recorder with Detachable Probe (220V) with NIST by Extech

Features

• Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date
• Measures Humidity (10 to 95%RH) and Temperature (-20.0°F to 140.0°F) plus included LabVIEW™-based software calculates and graphs Dew Point, Wet Bulb, and GPP (grains per pound)
• Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
• Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis
• LCD indicates percentage of memory remaining
• Replaceable probe does not require recalibration
• Detachable probe extends up to 1 meter for measurements in closed environments
• Audible and visual alarm with Hi/Low setpoints
• Output socket used with optional external alarm module
• Scroll the cursor to display selected data recorded
• Desk or wall mount
• Complete with built-in stand, detachable probe with 3ft (1m) cable, RS232 cable, RS-232 To USB Adaptor, LabView-based PC software, 100-240VAC 50/60Hz adaptor, and 3 AA batteries

Applications

• Monitor and record Laboratory or clean Room temperature and humidity history
• Record process conditions
• Generate warning when conditions are outside required limits
• Monitor controlled environment areas such as freezers, storage areas and other critical areas
• Store humidity and temperature historical data for report generation

RH520A-240 Humidity + Temperature Chart Recorder with Detachable Probe (240V) by Extech

Features

• Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date
• Measures Humidity (10 to 95%RH) and Temperature (-20.0°F to 140.0°F) plus included LabVIEW™-based software calculates and graphs Dew Point, Wet Bulb, and GPP (grains per pound)
• Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
• Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis
• LCD indicates percentage of memory remaining
• Replaceable probe does not require recalibration
• Detachable probe extends up to 1 meter for measurements in closed environments
• Audible and visual alarm with Hi/Low setpoints
• Output socket used with optional external alarm module
• Scroll the cursor to display selected data recorded
• Desk or wall mount
• Complete with built-in stand, detachable probe with 3ft (1m) cable, RS232 cable, RS-232 To USB Adaptor, LabView-based PC software, 100-240VAC 50/60Hz adaptor, and 3 AA batteries

Applications

• Monitor and record Laboratory or clean Room temperature and humidity history
• Record process conditions
• Generate warning when conditions are outside required limits
• Monitor controlled environment areas such as freezers, storage areas and other critical areas
• Store humidity and temperature historical data for report generation

RH520A-240 Humidity + Temperature Chart Recorder with Detachable Probe (240V) with NIST by Extech

Features

• Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date
• Measures Humidity (10 to 95%RH) and Temperature (-20.0°F to 140.0°F) plus included LabVIEW™-based software calculates and graphs Dew Point, Wet Bulb, and GPP (grains per pound)
• Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
• Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis
• LCD indicates percentage of memory remaining
• Replaceable probe does not require recalibration
• Detachable probe extends up to 1 meter for measurements in closed environments
• Audible and visual alarm with Hi/Low setpoints
• Output socket used with optional external alarm module
• Scroll the cursor to display selected data recorded
• Desk or wall mount
• Complete with built-in stand, detachable probe with 3ft (1m) cable, RS232 cable, RS-232 To USB Adaptor, LabView-based PC software, 100-240VAC 50/60Hz adaptor, and 3 AA batteries

Applications

• Monitor and record Laboratory or clean Room temperature and humidity history
• Record process conditions
• Generate warning when conditions are outside required limits
• Monitor controlled environment areas such as freezers, storage areas and other critical areas
• Store humidity and temperature historical data for report generation

RHT10 Humidity and Temperature USB Datalogger by Extech

Features

• Datalogs 32,000 readings (16,000 for each parameter: Humidity/Temperature)
• Dew point indication via Windows® software (included)
• RHT10-SW optional software to calculate Grains per Pound (grams per kilogram) to 1120GPP (160g/kg)
• Selectable data sampling rate: 2s, 5s, 10s, 30s, 1m, 5m, 10m, 30m, 1hr, 2hr, 3hr, 6hr, 12hr, 24hr
• User-programmable alarm thresholds for RH and Temperature
• Status Indication via Red/Yellow LED and Green LED
• Long battery life (approx. 1 year)
• Complete with 3.6V Lithium battery and Windows® 98, 2000, XP, Vista, 7, and 8 compatible analysis software

RHT20 Humidity and Temperature Datalogger by Extech

Features

• USB interface for easy setup and data download
• Selectable data sampling rate: 1 second to 24 hours
• User-programmable alarm thresholds for RH and Temperature
• LCD displays current readings, Min/Max, and alarm status
• Complete with 3.6V Lithium battery, mounting bracket with combination lock, and Windows® 2000, XP, Vista, and 7 compatible analysis software

RHT50 Humidity/Temperature/Pressure Datalogger by Extech

Features

• USB interface for easy set-up and data download
• Selectable Atmospheric Pressure Units: psi, hPa, kPa, and bar
• Selectable data sampling rate from 1 minute to 18 hours
• User-programmable Min/Max alarm thresholds
• Manual and Programmable start modes
• Status Indication via Red/Yellow LED and Green LED
• Long battery life
• Complete with 3.6V Lithium battery, mounting bracket, and Windows® 98, 2000, XP, and Vista compatible analysis software

SD500 Humidity/Temperature Datalogger by Extech

Features

• Dual LCD simultaneously displays Relative Humidity and Temperature readings
• Datalogger date/time stamps and stores readings on an SD card in Excel® format for easy transfer to a PC
• Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto
• Complete with 6 AAA batteries, 2G SD card, Universal AC Adaptor, and mounting bracket

SD700 Barometric Pressure/Humidity/Temperature Datalogger by Extech

Features

• Displays Barometric Pressure in 3 units of measure: hPa, mmHg, and inHg
• Triple LCD simultaneously displays Barometric Pressure, Temperature, and Relative Humidity
• Datalogger date/time stamps and stores readings on an SD card in Excel® format for easy transfer to a PC
• Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds
• Complete with (6) AAA batteries, 2G SD card, Universal AC adaptor, and mounting bracket

Applications

• Monitors Barometric Pressure, Humidity, and Temperature levels in clean rooms, warehouses, storage rooms, and water damage restoration projects

SDL500 Hygro-Thermometer/Datalogger by Extech

Features

• Relative Humidity, Temperature, Dew Point, and Wet Bulb measurement
• Datalogger date/time stamps and stores readings on an SD card in Excel® format for easy transfer to a PC
• Adjustable data sampling rate: 1 to 3600 seconds
• Stores 99 readings manually and 20M readings via 2G SD card
• Type K/J Thermocouple input for high temperature measurements
• Large backlit dual LCD display
• Record/Recall MIN, MAX readings
• Data Hold plus Auto power off with disable function
• Built-in PC interface
• Complete with 6 x AA batteries, SD card, carrying case and Humidity/Temperature probe

SDL500 Hygro-Thermometer/Datalogger with NIST by Extech

Features

• Relative Humidity, Temperature, Dew Point, and Wet Bulb measurement
• Datalogger date/time stamps and stores readings on an SD card in Excel® format for easy transfer to a PC
• Adjustable data sampling rate: 1 to 3600 seconds
• Stores 99 readings manually and 20M readings via 2G SD card
• Type K/J Thermocouple input for high temperature measurements
• Large backlit dual LCD display
• Record/Recall MIN, MAX readings
• Data Hold plus Auto power off with disable function
• Built-in PC interface
• Complete with 6 x AA batteries, SD card, carrying case and Humidity/Temperature probe

WB200 Wet Bulb Hygro-Thermometer Datalogger by Extech

Portable Hygro-Thermometer with Wet Bulb and Dew Point Temperature readings. This meter combines traditional dry/wet bulb operation with modern electronic circuitry to provide accurate readings and trouble-free operation especially in dusty environments. for hanging or bench-top use, the meter is ideal for greenhouses, paint booths, food processing, and other environmentally sensitive locations.

Features

• Audible and visual alarm alerts when temperature and humidity level is higher or lower than the user programmed High/Low set points
• LCD displays Wet Bulb, Dew Point, and Air Temperature readings (41°F to 122°F /5°C to 50°C) and % Relative Humidity (0.0 to 99.9%RH)
• Resolution: 0.1°F/°C and 0.1%RH Basic accuracy: ±1°F/±0.6°C; ±3%RH
• Two thermistors provide fast and accurate readings
• Built-in fan provides fast response time
• Datalogger stores100 records that can easily be Recalled on meter display Display update rate: 120 seconds
• User programmable datalogging sampling rate from 15 to 60 minutes in 5 minute increments
• Dual color LED indicator for datalogging (Green) and alarm (Red) modes
• Water and Dust resistant construction
• Maximum/Minimum function
• Low battery indicator
• Dimensions: 2.8 x 3.1 x 7.0" (71 x 78 x 177mm) Weight: 8.0oz (250g)
• Complete with four AAA batteries and 100-240V Universal AC adaptor

45118 Mini Thermo-Anemometer by Extech

Features

• Fold up protective housing extends to 9" for better reach
• Large dual display of air velocity and temperature
• Data Hold to freeze most recent display
• Auto shutoff 15 minutes after last key is pressed
• Water resistant housing floats and Drop tested to 6 feet
• Complete with CR2032 lithium battery and lanyard

Windspeed

• Measures ft/min, MPH, m/s, km/h, Knots and Beaufort Force
• Selectable averaging function of 5, 10, or 13 second intervals
• Replaceable non-corrosive plastic wind vane (impeller)

Temperature and Windchill

• Measures from 0 to 122°F (-18 to 50°C)

45160 3-in-1 Humidity, Temperature and Airflow Meter by Extech

Features

• Ergonomic pocket size housing with large dual LCD simultaneous display of Temperature and Air Velocity or Relative Humidity
• Data Hold to freeze the displayed value
• Records Min/Max readings
• Built-in low friction vane wheel improves accuracy of air velocity in ft/min, MPH, m/s, km/h, and Knots
• Built-in precision thin-film capacitance humidity sensor for fast response
• Built in thermistor for ambient temperature measurements
• High temperature measurements using Type K thermocouple
• Defaults to last function when powered off
• Auto power off 10 minutes after last key is pressed with disable feature
• Low Battery and overrange indication
• Complete with built-in Humidity sensor and Vane wheel, wrist strap, and 9V battery. (Optional Type K thermocouple probe)

45170 4-in-1 Environmental Meter by Extech

Features

• Ergonomic pocket size housing with large dual LCD simultaneous display of Temperature and Air Velocity or Relative Humidity
• Characters on display reverse direction depending on Hygro-Thermo-Anemometer or Light Mode
• Data Hold to freeze the displayed value
• Records Min/Max readings
• Built-in low friction vane wheel improves accuracy of air velocity in ft/min, MPH, m/s, km/h, and Knots
• Built-in precision thin-film capacitance humidity sensor for fast response
• Built in thermistor for ambient temperature measurements
• Type K input measures Temperature to 2372°F (1300°C) using optional Type K probe
• Utilizes precision photo diode and color correction filter
• Cosine and color corrected light measurements
• Defaults to last function when powered off
• Auto power off 10 minutes after last key is pressed with disable feature
• Low Battery and overrange indication
• Complete with built-in Humidity sensor, Light sensor and Vane wheel, wrist strap, and 9V battery; Optional Type K thermocouple probe

AN310 Large Vane CFM/CMM Anemometer/Psychrometer by Extech

Extech's 4" (10cm) Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. Each meter simultaneously displays Airflow or Air Velocity and Temperature. Choose models that also measure Air Volume, Humidity & Carbon Dioxide (CO2).

Features

• Measures Relative Humidity, Wet Bulb and Dew Point
• Built-in thermistor for air temperature
• Multipoint and timed average calculations
• Min/Max, Data Hold, and Auto power off
• Optional Air Flow Cone Kit (AN300-C): 8.26" (210mm) round and 13.6" (346mm) square
• Complete with four AAA batteries and hard case

Applications

• HVAC
• Manufacturing
• Engineering
• Appliance Testing
• Research and Design

AN310 Large Vane CFM/CMM Anemometer/Psychrometer with NIST by Extech

Extech's 4" (10cm) Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. Each meter simultaneously displays Airflow or Air Velocity and Temperature. Choose models that also measure Air Volume, Humidity & Carbon Dioxide (CO2).

Features

• Measures Relative Humidity, Wet Bulb and Dew Point
• Built-in thermistor for air temperature
• Multipoint and timed average calculations
• Min/Max, Data Hold, and Auto power off
• Optional Air Flow Cone Kit (AN300-C): 8.26" (210mm) round and 13.6" (346mm) square
• Complete with four AAA batteries and hard case

Applications

• HVAC
• Manufacturing
• Engineering
• Appliance Testing
• Research and Design

AN340 CMM/CFM Anemometer/Psychrometer Datalogger by Extech

Telescoping probe with 18mm diameter vane sensor easily fits into air vents and can extend length of probe to 3.3ft (1m) long. Measures Air Velocity/Volume, Temperature, Humidity, Wet Bulb, and Dew Point. User can store up to 12,000 readings for data analysis.

Features

• Telescoping 0.7" (18mm) diameter vane sensor extends from 1ft (0.3m) up to 3.3ft (1m)
• Measures Air Velocity, Air Flow, Air Temperature, Humidity, Dew Point and Wet Bulb
• Manually store/recall up to 99 readings
• Automatically datalog up to 12000 readings with 12/24 hour time and date stamp
• Select data sampling rate from 1s to 4hr: 59 min: 59s
• Min/Max/Avg readings
• Data hold and Auto power off with disable
• Built-in PC Interface
• Complete with external mini vane probe, Windows® compatible software, USB cable, 6 AAA batteries, and hard carrying case

Applications

• HVAC with small ducts and vents
• Manufacturing
• Engineering
• Appliance Testing
• Research and Design

AN340 CMM/CFM Anemometer/Psychrometer Datalogger with NIST by Extech

Telescoping probe with 18mm diameter vane sensor easily fits into air vents and can extend length of probe to 3.3ft (1m) long. Measures Air Velocity/Volume, Temperature, Humidity, Wet Bulb, and Dew Point. User can store up to 12,000 readings for data analysis.

Features

• Telescoping 0.7" (18mm) diameter vane sensor extends from 1ft (0.3m) up to 3.3ft (1m)
• Measures Air Velocity, Air Flow, Air Temperature, Humidity, Dew Point and Wet Bulb
• Manually store/recall up to 99 readings
• Automatically datalog up to 12000 readings with 12/24 hour time and date stamp
• Select data sampling rate from 1s to 4hr: 59 min: 59s
• Min/Max/Avg readings
• Data hold and Auto power off with disable
• Built-in PC Interface
• Complete with external mini vane probe, Windows® compatible software, USB cable, 6 AAA batteries, and hard carrying case

Applications

• HVAC with small ducts and vents
• Manufacturing
• Engineering
• Appliance Testing
• Research and Design

EN300 5-in-1 Environmental Meter by Extech

Features

• Large dual LCD simultaneous display of Temperature and Air Velocity or Relative Humidity
• Characters on display reverse direction depending on Hygro-Thermo-Anemometer or Light-Sound Mode
• Data Hold and Min/Max functions
• Built-in low friction vane wheel improves accuracy of air velocity, precision thin-film capacitance humidity sensor for fast response, and thermistor for ambient temperature measurements
• Type K input measures temperature up to 2372° (1300°C)
• Utilizes precision photo diode and correction filter for Cosine and color corrected light measurements
• Sound Level measurement meets IEC 61672 class 2 using A frequency weighting and fast response time
• Auto power off 10 minutes after last key is pressed with disable feature; Low Battery and overrange indication
• Tripod mount (Optional TR100 tripod)
• PC interface with optional Data Acquisition Software 407001
• Complete with built-in sensors, Vane wheel, windscreen, Type K thermocouple probe, pouch case, and six 1.5V AAA batteries

SD800 CO₂/Humidity/Temperature Datalogger by Extech

Features

• Checks for Carbon Dioxide (CO₂) concentrations
• Maintenance free dual wavelength NDIR (non-dispersive infrared) CO₂ sensor
• Triple LCD simultaneously displays CO₂, Temperature and Relative Humidity
• Measurement ranges: CO₂: 0 to 4,000ppm; Temperature: 32 to 122°F (0 to 50°C); Humidity: 10 to 90%RH
• Datalogger date/time stamps and stores readings on an SD card in Excel® format for easy transfer to a PC
• Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto
• Complete with (6) AAA batteries, 2G SD memory card, Universal AC adaptor, and mounting bracket

Applications

• Monitors air quality in schools, office buildings, greenhouses, hospitals and anywhere that high levels of carbon dioxide are generated

AN320 Large Vane CFM/CMM Anemometer/Psychrometer + CO2 by Extech

Extech's 4" (10cm) Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. Each meter simultaneously displays Airflow or Air Velocity and Temperature. Choose models that also measure Air Volume, Humidity & Carbon Dioxide (CO2).

Features

• Measures Relative Humidity, Wet Bulb and Dew Point
• Carbon Dioxide (CO2) measurement
• Built-in thermistor for air temperature
• Multipoint and timed average calculations
• Min/Max, Data Hold, and Auto power off
• Optional Air Flow Cone Kit (AN300-C): 8.26" (210mm) round and 13.6" (346mm) square
• Complete with four AAA batteries and hard case

Applications

• HVAC
• Manufacturing
• Engineering
• Appliance Testing
• Research and Design

AN320 Large Vane CFM/CMM Anemometer/Psychrometer + CO2 with Limited NIST by Extech

Extech's 4" (10cm) Large Vane Thermo-Anemometer series allows for more precise readings on larger size ducts. Each meter simultaneously displays Airflow or Air Velocity and Temperature. Choose models that also measure Air Volume, Humidity & Carbon Dioxide (CO2).

Features

• Measures Relative Humidity, Wet Bulb and Dew Point
• Carbon Dioxide (CO2) measurement
• Built-in thermistor for air temperature
• Multipoint and timed average calculations
• Min/Max, Data Hold, and Auto power off
• Optional Air Flow Cone Kit (AN300-C): 8.26" (210mm) round and 13.6" (346mm) square
• Complete with four AAA batteries and hard case

Applications

• HVAC
• Manufacturing
• Engineering
• Appliance Testing
• Research and Design

42280 Temperature and Humidity Datalogger with NIST by Extech

Features

• Triple LCD displays Humidity, Temperature, and date (Year, Month, and Day)
• Programmable from keypad or PC
• Selectable data sampling rate
• User programmable audible and visual alarms
• Wall, desktop, or tripod mount
• Calibration via optional salt bottles
• Complete with Windows® compatible software, USB cable, Universal AC adaptor, and four AA batteries

HT200 Heat Stress (WGBT) Wet Bulb Globe Temperature Meter by Extech

Extech's Heat Stress WBGT (Wet Bulb Globe Temperature) Meter accurately determines the Heat Stress level (how hot it feels outside) by factoring a combination of humidity, temperature, air movement, and direct solar radiation. These factors all affect how hot our bodies get, as well as our ability to cool down. It's perfect for monitoring the Heat Index on hot humid days to prevent heat stroke during road or building construction, outdoor activities, sporting events, or in the workplace.

Features

• Uses a capacitance sensor to accurately measure Wet Bulb Globe Temperature (WBGT), Black Globe Temperature (TG), Relative Humidity (%RH), Air Temperature (TA), Wet Bulb (WT) and Dew Point (DEW)
• Heat Stress Index measures how hot it feels when humidity is combined with temperature, air movement, and radiant heat
• Black Globe Temperature (TG) monitors the effects of direct solar radiation on an exposed surface
• In/Out function displays the WBGT value with or without direct sun exposure
• WBGT high/low alarm settings
• Memory stores up to 50 readings
• Backlit LCD
• Min/Max and Data Hold
• Low battery indicator
• Auto power off with disable
• Complete with 9V battery and hard carrying case

RH210 Compact Handheld Hygro-Thermometer by Extech

Compact handheld Hygro-Thermometer with large dual LCD displays Temperature and Humidity or Dew Point simultaneously. Dew Point measurement can indicate if conditions are suitable for painting. Ideal for many industrial applications or home use.

Features

• Compact design features large dual display of Temperature and Humidity or Dew Point
• Uses precision capacitance sensor
• Min/Max function stores & recalls highest and lowest readings
• Data Hold function freezes reading on display
• Auto Power Off with disable feature
• Low battery indication
• Complete with probe and 39" (1m) cable, 9V battery, and soft case

Applications

• Water Restoration
• Factories
• Clean rooms
• Offices
• Storage facilities
• Greenhouses
• Painting
• HVAC

RH200W Multi-Channel Wireless Hygro-Thermometer by Extech

Extech's Multi-Channel Hygro-Thermometer, with easy-toread 1.3" (33mm) digits, displays indoor Temperature and Humidity levels. You can connect up to 8 wireless transmitters to remotely measure Temperature/Humidity levels up to 98ft (30m) away. The LCD is designed with an auto-night light and it displays icons that indicate indoor comfort levels and trending arrows that show the increase, decrease or constant readings. It also records Min/Max for the duration of each measurement session. Ideal for multi-room environmental monitoring for restaurants, manufacturing facilities, offices, homes, greenhouses, and storage/archive buildings.

Features

• Base Station LCD with Auto-Night Light displays local and up to eight remote Temperature/Humidity readings either auto-cycle or manual mode from the wireless transmitters
• Easy-to-read 1.3" (33mm) oversized digits
• Min/Max recording with reset
• Indoor Comfort icons displayed on Base Station indicating too cold, comfortable, or too hot/humid conditions
• Trend arrows indicate rising, steady or falling of the Temperature/Humidity readings
• Snow icon appears when remote temperature is 37.4°F (3°C) or below
• Transmitter LED flashes to indicate normal operation
• Transmitters can be mounted up to 98ft (30m) from the base station
• Operates at 433MHz; FCC approved
• Includes a base station with 4 AA batteries and one transmitter with 2 AA batteries. Additional remote Transmitters (RH200W-T) sold separately (up to 8 transmitters can be wirelessly connected to the base)

RH200W-T Wireless Hygro-Thermometer Transmitter by Extech

Extech's Multi-Channel Hygro-Thermometer, with easy-toread 1.3" (33mm) digits, displays indoor Temperature and Humidity levels. You can connect up to 8 wireless transmitters to remotely measure Temperature/Humidity levels up to 98ft (30m) away. The LCD is designed with an auto-night light and it displays icons that indicate indoor comfort levels and trending arrows that show the increase, decrease or constant readings. It also records Min/Max for the duration of each measurement session. Ideal for multi-room environmental monitoring for restaurants, manufacturing facilities, offices, homes, greenhouses, and storage/archive buildings.

Features

• Base Station LCD with Auto-Night Light displays local and up to eight remote Temperature/Humidity readings either auto-cycle or manual mode from the wireless transmitters
• Easy-to-read 1.3" (33mm) oversized digits
• Min/Max recording with reset
• Indoor Comfort icons displayed on Base Station indicating too cold, comfortable, or too hot/humid conditions
• Trend arrows indicate rising, steady or falling of the Temperature/Humidity readings
• Snow icon appears when remote temperature is 37.4°F (3°C) or below
• Transmitter LED flashes to indicate normal operation
• Transmitters can be mounted up to 98ft (30m) from the base station
• Operates at 433MHz; FCC approved
• Includes a base station with 4 AA batteries and one transmitter with 2 AA batteries. Additional remote Transmitters (RH200W-T) sold separately (up to 8 transmitters can be wirelessly connected to the base)

RH35 Desktop Hygro-Thermometer Alert by Extech

Extech's RH35 monitors Humidity, Temperature, and Dew Point for the previous 24 hours and alerts users to indoor mold hazard conditions starting with a frown icon warning when humidity reaches 60%RH. When the RH exceeds 65%, a loud audible alarm and bright flashing red LED will be triggered. The frown icon will also appear if the environment is too dry (<40%RH) where static electricity becomes a concern.

Features

• Innovative graphical display shows the measured humidity values of the last 24 hours like a radar screen
• Large, easy-to-read LCD displays % Relative Humidity, Indoor Temperature and Dew Point
• Measurement ranges: Humidity: 10 to 99%RH; Temperature: 14 to 140°F (-10 to 60°C)
• Basic Accuracy of ±4%RH (30% to 80%), ±5%RH (<35% or>75%), ±1.8°F/1°C
• Beeper sounds and bright LED flashes when humidity level exceeds 65%RH
• Facial icons indicate comfort zone (between 40 to 60%RH) and uncomfortable zone (too dry < 40%RH or too humid > 60%RH) - see icon chart on the right
• Stores and recalls Max/Min readings
• Desktop stand can be removed for wall mount use
• Dimensions: 3.9x3.9x0.9" (98x98x23mm); with stand 3.9x4.3x 2" (98x109x55mm); Weight: 3.1oz (87g)
• Complete with stand and 2 AAA batteries

Applications

• Commercial, retail and residential sites prone to mold
• Laboratories, R&D, server rooms, clean rooms and bio-pharmaceutical manufacturing
• Museums and storage and document archive facilities

RHM15 Mini Hygro-Thermometer Monitor by Extech

Miniature Hygro-Thermometer ideal for monitoring Temperature and Humidity conditions in enclosed or open space environments. It helps gauge proper heat and moisture levels and it also records high and low extremes during the day.

Features

• Simultaneous display of Temperature and Humidity
• Built-in memory stores maximum/minimum readings
• Clear button resets maximum/minimum measurements
• Measuring ranges: Temperature: 14 to 140°F; Humidity: 10% to 99% RH
• Basic accuracy: ±5%RH, ±2°F
• Low battery indication
• Dimensions: 2 x 1.5 x 0.63" (51 x 38 x 16mm)
• Weight: 0.8oz (24g)
• Complete with built-in tilt stand and LR44 battery

Applications

• Musical instrument cases
• Humidors
• Retail display cases
• Memorabilia collections
• Factories
• Greenhouses
• Offices
• Homes

RHM16 Mini Hygro-Thermometer Monitor by Extech

Miniature Hygro-Thermometer ideal for monitoring Temperature and Humidity conditions in enclosed or open space environments. It helps gauge proper heat and moisture levels and it also records high and low extremes during the day.

Features

• Simultaneous display of Temperature and Humidity
• Built-in memory stores maximum/minimum readings
• Clear button resets maximum/minimum measurements
• Measuring ranges: Temperature: -10 to 60°C; Humidity: 10% to 99% RH
• Basic accuracy: ±5%RH, ±1°C
• Low battery indication
• Dimensions: 51 x 38 x 16mm
• Weight: 24g
• Complete with built-in tilt stand and LR44 battery

Applications

• Musical instrument cases
• Humidors
• Retail display cases
• Memorabilia collections
• Factories
• Greenhouses
• Offices
• Homes

RHT3 Ezsmart Hygro-Thermometer Android and iOS by Extech

Make your iOS® and Android™ Smart Devices even smarter with this EzSmart Hygro-Thermometer and free app from iTunes® and Google Play™ store! Take quick, readings of Humidity and Temperature. Further analyze these readings with the handy trend graph feature. It's fully functional like a regular all purpose HygroThermometer for a fraction of the cost!

Features

• Measures Humidity and Temperature simultaneously
• Calculates Wet Bulb and Dew Point Temperature
• Continuous graph plots Humidity and Temperature changes over time
• 5 user-settable high/low alarms for both Temperature and Humidity
• Four records - each contains 100 data points with Humidity, Temperature, Wet Bulb, and Dew Point, plus Time, Date and GPS coordinates
• Post images directly to social media (Facebook® and Twitter™)
• Complete with built-in sensor and protective connector cap with strap

RHT30 USB Humidity/Temperature Datalogger by Extech

Easy-to-use dataloggers record Humidity and Temperature, and RHT35 model also records Barometric Pressure. They use a standard USB connection to transfer up to 48,000 readings to a PC with data/time stamp in PDF or spreadsheet format. Additional features include an 8-location logger bookmark, 6-language options, programmable sampling interval, adjustable alarm, and password-protected security log-in. Large LCD optimizes viewing and the smart LED provides color-coded humidity, temperature, and barometric pressure reading status.

Features

• Compact size housing with built-in NTC thermistor and capacitive humidity sensor designed with standard USB connector for easy data downloading to a PC
• RHT35 has built-in barometric pressure MEMS sensor
• 5-digit LCD display with battery life indicator
• User programmable settings: 6 languages, sample rate, start delay time, alarm delay time, high/low alarm range, and security feature
• Status Indication via Red and Green LEDs
• Start button begins continuous datalogging, which continues until memory is full at 48,000 readings, or when Stop button is pressed
• Bookmark 8 locations in a data recording log
• Long battery life (approx. 3 months)
• Generates a PDF report or Excel® spreadsheet with data and trending graph when plugged into a PC after datalogging is completed (Adobe® Reader® required)
• Max/Min function
• Includes (2) CR2032 batteries, USB cover (can be used as a stand), wall mounting screw, and built-in hanger

RHT35 Humidity/Temperature/Barometric Pressure Datalogger with USB by Extech

Easy-to-use dataloggers record Humidity and Temperature, and RHT35 model also records Barometric Pressure. They use a standard USB connection to transfer up to 48,000 readings to a PC with data/time stamp in PDF or spreadsheet format. Additional features include an 8-location logger bookmark, 6-language options, programmable sampling interval, adjustable alarm, and password-protected security log-in. Large LCD optimizes viewing and the smart LED provides color-coded humidity, temperature, and barometric pressure reading status.

Features

• Compact size housing with built-in NTC thermistor and capacitive humidity sensor designed with standard USB connector for easy data downloading to a PC
• RHT35 has built-in barometric pressure MEMS sensor
• 5-digit LCD display with battery life indicator
• User programmable settings: 6 languages, sample rate, start delay time, alarm delay time, high/low alarm range, and security feature
• Status Indication via Red and Green LEDs
• Start button begins continuous datalogging, which continues until memory is full at 48,000 readings, or when Stop button is pressed
• Bookmark 8 locations in a data recording log
• Long battery life (approx. 3 months)
• Generates a PDF report or Excel® spreadsheet with data and trending graph when plugged into a PC after datalogging is completed (Adobe® Reader® required)
• Max/Min function
• Includes (2) CR2032 batteries, USB cover (can be used as a stand), wall mounting screw, and built-in hanger

RHT510 Hygro-Thermometer Psychrometer by Extech

Conveniently check the Humidity and Temperature conditions in residential and professional settings to ensure comfort and safety. The RHT510 is a Hygro-Thermometer Psychrometer that measures Relative Humidity, Temperature, Dew Point, and Wet Bulb. General purpose bead wire Type K probe is included for measuring Temperature up to ~480°F (250°C), while the meter can measure to 2372°F (1300°C) if used with other probes. Min/ Max function stores and recalls highest and lowest readings. Additional features include: large LCD display with backlight, Data Hold and Auto power off with disable option.

Features

• Measures Temperature (Air/Type K), Relative Humidity, Wet Bulb, and Dew Point
• Backlit LCD to view in dimly lit areas
• Data Hold and Min/Max functions
• Auto power off with disable
• Tripod mount (optional TR100 Tripod sold separately)
• Complete with wrist strap, general purpose Type K bead wire Temperature probe, and 3 AAA batteries

RHT510 Hygro-Thermometer Psychrometer with NIST by Extech

Conveniently check the Humidity and Temperature conditions in residential and professional settings to ensure comfort and safety. The RHT510 is a Hygro-Thermometer Psychrometer that measures Relative Humidity, Temperature, Dew Point, and Wet Bulb. General purpose bead wire Type K probe is included for measuring Temperature up to ~480°F (250°C), while the meter can measure to 2372°F (1300°C) if used with other probes. Min/ Max function stores and recalls highest and lowest readings. Additional features include: large LCD display with backlight, Data Hold and Auto power off with disable option.

Features

• Measures Temperature (Air/Type K), Relative Humidity, Wet Bulb, and Dew Point
• Backlit LCD to view in dimly lit areas
• Data Hold and Min/Max functions
• Auto power off with disable
• Tripod mount (optional TR100 Tripod sold separately)
• Complete with wrist strap, general purpose Type K bead wire Temperature probe, and 3 AAA batteries