Extech CO200 Desktop Indoor Air Quality CO2 Monitor.

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 CO₂ warning 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.

Desktop Indoor Air Quality CO2 Monitor
The CO200 uses a maintenance-free NDIR sensor and has user-settable high/low warning alarms with a relay output for ventilation control. Air Quality is displayed in ppm with Good (380 to 420ppm), Normal (1000ppm) indication.

Features Overview
Measurement ranges are 0 to 9,999ppm (CO2), 14 to 140°F (-10 to 60°C) for Air Temperature and 0.1 to 99.9% for Relative Humidity. It features Min/Max CO2 value recall, Year/Month/Date/Time display, and an Automatic Baseline Calibration (minimum CO2 level over 7.5 days) or manual calibration in fresh air. 

Applications
Monitor air quality in schools, office buildings, greenhouses, factories, hotels, hospitals, auditoriums, indoor athletic events – anywhere that high levels of carbon dioxide are generated.

Monitor air quality in schools, office buildings, greenhouses, factories, hotels, hospitals and anywhere that high levels of carbon dioxide are generated Desktop Carbon Dioxide (CO2) Meter monitors the air quality in conference rooms insuring proper air ventilation