Model A771

A771 Carbon Monoxide Adapter for DMMs and Clamp-on Meters by Test Products International

The A771 is a CO adapter designed to work with your DMM to measure ambient air CO. Can also be used as a personal COalarm.

National Ambient Air Quality Primary Standards in the US call for less then 9 ppm carbon monoxide for an 8 hour average during any 12 month period.

Concentrations of 1 to 2 ppm may be found in homes with a normally operating gas furnace to well over 1,000 ppm in homes with a faulty furnace.

Just 200 ppm CO over 2 to 3 hours can cause slight headache, fatigue, dizziness, and nausea.

Carbon Monoxide testing is a crucial service provided by HVAC/R technicians.

The A771 is an advanced state-of-the-art Carbon Monoxide monitor that may be used to measure levels of carbon monoxide (CO) in the parts per million (ppm) range when used with a digital multimeter (DMM).

Features

• No Bulk! Easily carry one on your belt or tool box
• Easy to use with any DMM or Clamp-on Meter with a minimum 3 1/2 digit LCD, 2 or 4 Volt DC range and 10M or greater input impedance
• Detects CO levels from 0-1999 ppm, with resolution as low as 0.1ppm and ± 5% of reading accuracy
• Low battery and power indication
• Use with any DMM with minimum 2 1/2 digit LCD, 2 or 4Volt DC range and 10M Ohm or greater input impedance
• Calibrate in the field
• Complete with Belt pouch, A771P
• Built-in alarm is preset to 30ppm. Setting can be set by user
• 3 Year Limited Warranty

Applications

• Conduct Tests of CO Levels In Room Air To Meet ASHRAE and OSHA Standards
• Confirm Proper Operation of Alarming CO Detectors in Households
• Check For Proper Installation of Ventless Gas Fireplaces, Furnaces, and Other Combustion Devices.
• Use The A771 as a Personal Alarm Preset at 30 CO