Senva CT1R-B3X Combination IAQ Sensor, CO2, Room, noLCD, TEMP Transmitter

Senva CT1R-B3X Combination IAQ Sensor, CO2, Room, noLCD, TEMP Transmitter. 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.