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BW Technologies Gas Alert Micro 5 multi gas monitor

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BW Technologies Gas Alert Micro 5 multi gas monitor

BW Technologies Gas Alert Micro 5 multi gas monitor

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5 Gas Monitor with optional sampling pump

Build to order

Providing protection from up to five potential atmospheric hazards including oxygen, combustible and toxic gases, GasAlertMicro 5 is unparalleled in its versatility, capability and overall value. BW's newest addition to its water-resistant line of portable gas detectors has transformed the market with its matchless array of features.

Continuously monitoring and displaying concentrations of up to five gases, the compact and lightweight GasAlertMicro 5 was designed and engineered with an extensive host of applications in mind.


  • Integral concussion-proof boot
  • Optional integral motorized pump option for remote sampling
  • Powered by three AA alkaline batteries or a hot-swappable rechargeable battery pack
  • Triple alarms (audible, visual and vibrating)
  • Multi-language support in English, French, German, Spanish and Portuguese
  • Large, user selectable backlit LCD
  • Four alarm levels: Low, High, TWA and STEL
  • Compatible with MicroDock II Automatic Test and Calibration Station
  • Datalogging models store and recall event information
  • Wide range of user selectable field options including password protection, safe and stealth modes.


  • Full function self-test confirms sensor, battery and circuitry integrity and audible/visual alarms on activation
GasAlertMicro 5 Specifications:
Size 5.7 x 2.9 x 1.5 in. / 14.5 x 7.4 x 3.8 cm
Weight 13.1 oz. / 370 g
Temperature -4 to +122F / -20 to +50C
-14 to +104F / -10 to +40C (PID)
Alarms - Visual, vibrating, audible (95dB)
- Low, High, STEL, TWA, OL (over limit)
Tests Sensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous)
Pump Optional
User options Confidence beep, Set STEL interval, Set TWA method, Sensor on/off, Latching alarms, Safe display mode, Stealth mode, Adjust Clock, Set datalogger rate, Passcode protection, Correction factor library (LEL, PID), Fast pump, Combustible gas measurement (% LEL or % by volume methane), O2 auto calibration on start up, Automatic backlight, Sleep mode, User-settable calibration gas level, Calibration due lockout, Daily bump test, Language choices (5), High resolution
Warranty Full 2 year warranty including sensors (1 year NH3 and PID lamp)

Sensor Specifications:
Gas Measuring Range (ppm) Default Resolution (ppm) High Resolution (ppm)
H2S 0-500 1.0 0.1
CO 0-999 1.0 N/A
TwinTox (H2S) 0-500 1.0 0.1
TwinTox (CO) 0-500 1.0 N/A
O2 0-30.0% 0.1% N/A
SO2 0-150 1.0 0.1
PH3 0-5.0 1.0 0.1
NH3 0-100 1.0 0.1
NO2 0-99.9 1.0 0.1
HCN 0-30.0 1.0 0.1
Cl2 0-50.0 1.0 0.1
ClO2 0-1.0 0.1 0.01
O3 0-1.0 0.1 0.01
PID (VOCs) 0-1000 1 N/A
IR (CO2) 0-50,000
0-5.0% v/v
Combustible gases 0-100% LEL
0-5.0% v/v

Questions & Answers

4 Questions & 4 Answers
Bob Waters
from Fargo, ND asked:
March 24, 2018
We have Gas Alert Micro 5 and having hard time trying to calibrate the ICO, the message I am getting is gas not detected even with a new tank. I am using a new hose and everything is clear in the hose but still getting this message even after calibrating the other 4 levels. It is just this one that will not calibrate. What am I doing wrong.
1 Answer
Hi Bob, This sounds like the CO sensor has failed and will need to be replaced. The replacement sensor is the PS-RM04. Once you get this sensor and install it into the instrument you will need to calibrate it.
Submitted by: Customer Service on April 5, 2018

from Middle east asked:
March 6, 2014
I use the Micro 5 detector. I have activated the Due Lock of the monitor and in the beginning it asks me for the passcode. How can I factory reset the device to remove this?
1 Answer
Your Micro 5 should have a default pass code of 1007. If you have changed the pass code on the monitor, the only way to remove that setting is through the MicroDock II and Fleet Manager software. If you have a MicroDock then you can plug it in to your computer and use the option "Configure Device Via MicroDock" to adjust settings like that.
Submitted by: Customer Service on March 6, 2014

from UK asked:
October 19, 2013
Hi, I am looking for monitor for just CO and NO2 with rechargeable batteries (not pumped). What is the best configuration to achieve this please?
1 Answer
You could consider the BW Gas Alert Micro 5 series for your configuration request. Please see the following: M5-00MD-A-D-D-Y-N-00 - $975.00/EA http://www.jjstech.com/gasalertmicro5.html
Submitted by: Customer Service on October 21, 2013

Aileen Bay
from Pleasanton, California asked:
May 17, 2013
Where can I get one of these serviced? Ours needs general maintenance, new batteries, and to be calibrated.
1 Answer
Dear Aileen, Thank you for contacting JJS! Our service center can perform all necessary repairs and calibration on the Gas Alert Micro 5. Please go to our online service form to create an account and to submit a new work order. http://www.jjstech.com/onlineservicerequest1.html If you have any other questions please don't hesitate to contact us.
Submitted by: Customer Service on May 20, 2013


1 Reviews
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0% Recommend this product (0 of 1 responses)
By Jeff
North Carolina
Terrible product
March 27, 2014
Very finicky and high maintenance. These are cheap meters but they are very problematic. Always having to calibrate, replace sensors, troubleshoot micro dock bump tests - it never ends! Technical support line is very helpful, the product is just terrible!

This is a device that is supposed to protect the lives of those who use it! Do NOT buy these meters! MSA all the way!
  • Cheap & good technical service
  • Technical service needed all the time!
  • problematic
  • "background noise" in fresh air environments
  • inaccurate & scary