Senva CT1R-K3D Combination IAQ Sensor, CO2, Room, LCD, 20K

Senva CT1R-K3D Combination IAQ Sensor, CO2, Room, LCD, 20K. Senva's CT1 Series, the CT1R and CT1W Temperature, Recessed and Wall, feature optional LCD with field calibration, high accuracy NDIR CO2 element, and sense up to 10K PPM CO2.