Senva CT1D-A3D Combination IAQ Sensor, CO2, Duct, LCD, NoTemp

Senva CT1D-A3D Combination IAQ Sensor, CO2, Duct, LCD, NoTemp. Senva's CT1D Series CO2 and Temperature Duct Sensors for Indoor Air Quality, feature optional LCD, adjustability for ranges, integrated set-point relay and field replacement NDIR element.