Checks for Carbon Dioxide (CO2)
concentrations with Max/Min value recall function
■Maintenance free NDIR (non-dispersive infrared) CO2 sensor
■Indoor Air Quality displayed in ppm with Good (380 to 420ppm), Normal (<1000ppm), Poor (>1000ppm) indicati
■Visible and Audible CO2 warning alarm with relay output for ventilation control
■Measurement ranges:
◦CO2: 0 to 9,999ppm (2001~9999 ppm out of scale range)
◦Temperature: -4 to 140°F (-10 to 60°C)
◦Humidity: 0.1 to 99.9%RH
■Displays Year, Month, Date, and Time
■Automatic Baseline Calibration (minimum CO2 level over 7.5 days) or manual calibration in fresh air