Collection: Indoor Air Quality (IAQ) and Combo Sensors
Indoor Air Quality (IAQ) directly impacts occupant health and productivity in commercial buildings. Poor ventilation and pollutants such as mold, VOCs, CO₂, and particulate matter can cause headaches, fatigue, and reduced performance — while well-managed air quality improves comfort and well-being. IAQ and combo sensors monitor these conditions and signal HVAC systems to automatically adjust for cleaner air. Combo sensors measure multiple parameters in a single device, with many models combining temperature and relative humidity, and others adding CO₂, CO, NO₂, or particulate matter monitoring. We carry IAQ and combo sensors from Senva, Gentex, Siemens, Greystone, and other trusted manufacturers.
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Senva CT1R-G3D Combination IAQ Sensor, CO2, Room, LCD, 10KT3 w/ 11K SHUNT
Regular price $253.26 USDRegular priceSale price $253.26 USD -
Senva CT1R-F3X-D Combination IAQ Sensor, Dual Channel CO2, Room, noLCD, 10K TYPE 3
Regular price $207.84 USDRegular priceSale price $207.84 USD -
Senva CT1R-F3X Combination IAQ Sensor, CO2, Room, noLCD, 10K TYPE 3
Regular price $172.91 USDRegular priceSale price $172.91 USD -
Senva CT1R-E3X-D Combination IAQ Sensor, Dual Channel CO2, Room, noLCD, 10K TYPE 2
Regular price $197.94 USDRegular priceSale price $197.94 USD -
Senva CT1R-E3X Combination IAQ Sensor, CO2, Room, noLCD, 10K TYPE 2
Regular price $172.91 USDRegular priceSale price $172.91 USD -
Senva CT1R-E3D-D Combination IAQ Sensor, Dual Channel CO2, Room, LCD, 10K TYPE 2
Regular price $274.47 USDRegular priceSale price $274.47 USD -
Senva CT1R-E3D Combination IAQ Sensor, CO2, Room, LCD, 10K TYPE 2
Regular price $253.26 USDRegular priceSale price $253.26 USD -
Senva CT1R-D3D-D Combination IAQ Sensor, Dual Channel CO2, Room, LCD, 1000PT RTD
Regular price $274.47 USDRegular priceSale price $274.47 USD -
Senva CT1R-D3D Combination IAQ Sensor, CO2, Room, LCD, 1000PT RTD
Regular price $253.26 USDRegular priceSale price $253.26 USD -
Senva CT1R-C3D-D Combination IAQ Sensor, Dual Channel CO2, Room, LCD, 100PT RTD
Regular price $274.47 USDRegular priceSale price $274.47 USD -
Senva CT1R-C3D Combination IAQ Sensor, CO2, Room, LCD, 100PT RTD
Regular price $253.26 USDRegular priceSale price $253.26 USD -
Senva CT1R-B3X Combination IAQ Sensor, CO2, Room, noLCD, TEMP Transmitter
Regular price $172.91 USDRegular priceSale price $172.91 USD -
Senva CT1R-B3D-D Combination IAQ Sensor, Dual Channel CO2, Room, LCD, TEMP Transmitter
Regular price $274.47 USDRegular priceSale price $274.47 USD -
Senva CT1R-B3D Combination IAQ Sensor, CO2, Room, LCD, TEMP Transmitter
Regular price $253.26 USDRegular priceSale price $253.26 USD -
Senva CT1R-A3X-D Combination IAQ Sensor, Dual Channel CO2, Room, noLCD, noTEMP
Regular price $192.13 USDRegular priceSale price $192.13 USD -
Senva CT1R-A3X Combination IAQ Sensor, CO2, Room, noLCD, noTEMP
Regular price $157.20 USDRegular priceSale price $157.20 USD -
Senva CT1R-A3D-D Combination IAQ Sensor, Dual Channel CO2, Room, LCD, noTEMP
Regular price $270.72 USDRegular priceSale price $270.72 USD -
Senva CT1R-A3D Combination IAQ Sensor, CO2, Room, LCD, noTEMP
Regular price $235.79 USDRegular priceSale price $235.79 USD -
Senva CT1D-K3X Combination IAQ Sensor, CO2, Duct, No LCD, 20K Thermistor
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-K3D Combination IAQ Sensor, CO2, Duct, LCD, 20K Thermistor
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-J3X Combination IAQ Sensor, CO2, Duct, No LCD, 1K8 Thermistor
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-J3D Combination IAQ Sensor, CO2, Duct, LCD, 1K8 Thermistor
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-I3X Combination IAQ Sensor, CO2, Duct, No LCD, 2K2 Thermistor
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-I3D Combination IAQ Sensor, CO2, Duct, LCD, 2K2 Thermistor
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-H3X Combination IAQ Sensor, CO2, Duct, No LCD, 3K Thermistor
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-H3D Combination IAQ Sensor, CO2, Duct, LCD, 3K Thermistor
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-G3X Combination IAQ Sensor, CO2, Duct, No LCD, 10K w/11k Thermistor
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-G3D Combination IAQ Sensor, CO2, Duct, LCD, 10K w/11k Thermistor
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-F3X Combination IAQ Sensor, CO2, Duct, No LCD, 10K Type 3 Thermistor
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-F3D Combination IAQ Sensor, CO2, Duct, LCD, 10K Type 3 Thermistor
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-E3X Combination IAQ Sensor, CO2, Duct, No LCD, 10K Type 2 Thermistor
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-E3D Combination IAQ Sensor, CO2, Duct, LCD, 10K Type 2 Thermistor
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-D3X Combination IAQ Sensor, CO2, Duct, NoLCD, 1000Pt RTD
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-D3D Combination IAQ Sensor, CO2, Duct, LCD1000Pt RTD
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-C3X Combination IAQ Sensor, CO2, Duct, No LCD, 100Pt RTD
Regular price $283.18 USDRegular priceSale price $283.18 USD -
Senva CT1D-C3D Combination IAQ Sensor, CO2, Duct, LCD, 100Pt RTD
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-B3X Combination IAQ Sensor, CO2, Duct, No LCD, TempTransmitter
Regular price $283.17 USDRegular priceSale price $283.17 USD -
Senva CT1D-B3D Combination IAQ Sensor, CO2, Duct, LCD, TempTransmitter
Regular price $310.32 USDRegular priceSale price $310.32 USD -
Senva CT1D-A3X Combination IAQ Sensor, CO2, Duct, NoLCD, NoTemp
Regular price $263.78 USDRegular priceSale price $263.78 USD -
Senva CT1D-A3D Combination IAQ Sensor, CO2, Duct, LCD, NoTemp
Regular price $290.93 USDRegular priceSale price $290.93 USD -
Senva CT1O-K3X Combination IAQ Sensor, CO2, Outdoor NoLCD, 20k Thermistor
Regular price $333.25 USDRegular priceSale price $333.25 USD -
Senva CT1O-K3D Combination IAQ Sensor, CO2, Outdoor LCD, 20K Thermistor
Regular price $357.94 USDRegular priceSale price $357.94 USD -
Senva CT1O-J3X Combination IAQ Sensor, CO2, Outdoor NoLCD, 1k8 Thermistor
Regular price $333.25 USDRegular priceSale price $333.25 USD -
Senva CT1O-J3D Combination IAQ Sensor, CO2, Outdoor LCD, 1K8 Thermistor
Regular price $357.94 USDRegular priceSale price $357.94 USD -
Senva CT1O-I3X Combination IAQ Sensor, CO2, Outdoor NoLCD, 2k2 Thermistor
Regular price $333.25 USDRegular priceSale price $333.25 USD -
Senva CT1O-I3D Combination IAQ Sensor, CO2, Outdoor LCD, 2K2 Thermistor
Regular price $357.94 USDRegular priceSale price $357.94 USD -
Senva CT1O-H3X Combination IAQ Sensor, CO2, Outdoor NoLCD, 3K Thermistor
Regular price $333.25 USDRegular priceSale price $333.25 USD -
Senva CT1O-H3D Combination IAQ Sensor, CO2, Outdoor LCD, 3K Thermistor
Regular price $357.94 USDRegular priceSale price $357.94 USD -
Senva CT1O-G3X Combination IAQ Sensor, CO2, Outdoor NoLCD, 10K w/11K Thermistor
Regular price $333.25 USDRegular priceSale price $333.25 USD -
Senva CT1O-G3D Combination IAQ Sensor, CO2, Outdoor LCD, 10K w/11K Thermistor
Regular price $357.94 USDRegular priceSale price $357.94 USD