Extech CO220 Desktop Indoor Air Quality CO2 Monitor, Range 9999 ppm, Resolution 1 ppm

The Extech CO220 air quality CO2 monitor measures carbon dioxide, air temperature, and humidity. The CO220 also calculates dew point and wet bulb. Use in conference rooms, schools, greenhouses, factories, hotels, hospitals, and any place where high levels of carbon dioxide are generated. It calculates statistical weighted averages of TWA (8 hour Time Weighted Average) and STEL (15 minute Short Term Exposure Limit). Maintenance free NDIR (non-dispersive infrared) CO2 sensor. It can manually store/recall 99 readings. Complete with AC adaptor.

Features:

• Displays Carbon Dioxide (CO2) concentrations
• Maintenance free NDIR (non-dispersive infrared) CO2 sensor
• Carbon Dioxide reading displayed in ppm with six facial icons indicating indoor quality levels (illustrated below)
• Audible CO2 warning alarm when concentration level exceeds high or low user set point
• Displays Year, Month, Day, and Time
• Min/Max CO2 value recall function
• Calculates Dew Point and Wet Bulb values
• Calculates statistical weighted averages of TWA (8 hour Time Weighted Average) and STEL (15 minute Short Term Exposure Limit)
• lps% (Liters per second per person) and cfm/p (cubic feet per minute per person)
• Automatic Baseline Calibration function
• Manually store/recall 99 readings

For more information, please see Data Sheet