The Extech CO200 air quality monitor can measure carbon dioxide (CO2), air temperature and humidity with user-settable high and low alarms. The Extech CO200 air quality monitor checks for carbon dioxide concentrations using a maintenance free NDIR (non-dispersive infrared) sensor. Indoor air quality is displayed by the Extech CO200 air quality monitor as "Good" (380 to 420ppm), "Normal" (less than 1000ppm) or "Poor" (greater than 1000ppm).
Other features of the Extech CO200 air quality monitor include visible and audible CO2warning alarms with relay output for ventilation control, year-month-date and time displays, Max/Min CO2 value recall function and automatic baseline calibration or manual calibration in fresh air.
The Extech CO200 is a desktop air quality monitor and comes complete with an AC adaptor.