EXTECH CO220 Offers

Features

• Measures carbon dioxide (CO₂), air temperature and humidity, plus also calculates dew point and wet bulb values
• Maintenance free NDIR (non-dispersive infrared) CO₂ sensor
• Carbon dioxide reading displayed in ppm with six facial icons indicating indoor quality levels
• Audible CO₂ warning alarm when concentration level exceeds high or low user set point
• Calculates statistical weighted averages of TWA (8 hour Time Weighted Average) and STEL (15 minute Short Term Exposure Limit)
• Audible High/Low alarm
• Min/Max CO₂ value recall function
• Automatic Baseline Calibration function
• lps% (liters per second per person) and cfm/p (cubic feet per minute per person)
• Manually store/recall 99 readings
• Displays Year, Month, Day, and Time