in door air Transmitter and Controller temperature meter. humidity meter . CO2.VOC meter Duct mount in ... 3%)SensorHumidity:Capacitive , CO2: Dual window NDIRCorrespod timeCO2 :,(T90) <60s; Temperature and humidity: 1/e(63%)change ,Slow flow rates<10sVOC ... 3%)SensorHumidity:Capacitive , CO2: Dual window NDIRCorrespod timeCO2 :,(T90) <60s; Temperature and humidity: 1/e(63%)change ,Slow flow rates<10sVOC ...