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Almost every heating, ventilation, air-conditioning, and refrigeration system uses sensors. Choose the world's top sensor brands to optimize system performance, and ensure occupant health, safety, comfort, and productivity.

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A.J. Antunes Sensors Aaon Sensors Accustat PSG Controls Sensors AERCO Boiler and Water Heater Sensors AJ Antunes Sensors Amana-Goodman Sensors Armstrong Furnace Sensors Image for Armstrong International Armstrong International Sensors Atlas Copco Sensors Auburn Sensors Bacharach Sensors Baltimore Parts Sensors Image for BAPI BAPI Sensors Barber Colman Sensors Bard HVAC Sensors Image for Belimo Belimo Sensors Bosch Sensors Bradford White Sensors Braeburn Systems Sensors Broan Fans Sensors BROAN-NuTone Sensors Buderus Sensors Burnham Boilers Sensors Carlin Sensors Carlyle Sensors Carrier Sensors Chicago Faucet Co Sensors ClimateMaster Sensors Copeland Sensors Daikin-McQuay Sensors Danfoss Sensors DriSteem Sensors Eclipse Sensors Emerson Climate-White Rodgers Sensors EWC Controls Sensors Fenwal Sensors Fireye Sensors GE Sensing-General Eastern Sensors Greenheck Sensors Grundfos Sensors Grundfos Circulators Sensors Haier A/C Sensors Heat Transfer Prod Sensors Heatcraft Refrigeration Sensors Honeywell Sensors Honeywell Analytics Sensors Honeywell E-MON Meters Sensors Honeywell Home Sensors Honeywell Inc Sensors Hydrolevel/Safeguard Sensors ICM Controls Sensors Indeeco Sensors Intellihot Sensors International Comfort Products Sensors J/B Industries SAE Fittings Sensors Johnson Controls Sensors Kele Product Sensors KMC Controls Sensors Kromschroder Sensors Laars Sensors Laars Heating Systems Sensors Leak Detector Sensors Lennox Sensors Liebert Sensors MAMAC Systems Sensors Marvair Sensors Maxitrol Sensors Mcdonnell Miller Sensors Mitsubishi Electric Sensors Modine Sensors Moen Sensors Image for Navien Boilers & Water Heaters Navien Boilers & Water Heaters Sensors Nortec Humidity Sensors Oil Equipment Manufacturing Sensors Packard Sensors Panasonic Sensors PRO 1 IAQ Sensors Pro1Iaq Sensors R.W. Beckett Sensors Raypak Sensors RBI Boiler Sensors Resideo Sensors Reznor Sensors Rheem-Ruud Sensors Rinnai Sensors Schneider Electric (Barber Colman) Sensors Scotsman Ice Machines Sensors Setra Sensors Siemens Building Technology Sensors Siemens Combustion Sensors Spartan Valves Sensors Sporlan Controls Sensors Sterling Sensors System Sensor Sensors Taco Sensors Thermo Pride Furnaces Sensors Titus HVAC Sensors Trane Sensors Utica-Dunkirk Sensors Veris Industries Sensors Viessmann Sensors Warrick-Gems Sensors Controls Sensors Water Heater Parts Sensors Weil Mclain Sensors York Sensors

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HVAC Humidity Sensor for Sale Duct Sensors Outside Sensors for Sale Room Humidity and Temperature Sensors CO2 Sensors for Sale Belimo Strap Sensors Pressure Sensors Belimo Bullet Sensors Accessories
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View Details Siemens Building Technology 7MF15654CA005EA1 SENSOR, LIQUID/GAS, 4-20MA, 0-150 PSIG | Midwest Supply Us
7MF15654CA005EA1 | SENSOR, LIQUID/GAS, 4-20MA, 0-150 PSIG | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 7MF15654CA005EA1
$323.16 each
View Details Siemens Building Technology 7MF15654BF005EA1 SENSOR, LIQUID/GAS, 4-20MA, 0-60 PSIG | Midwest Supply Us
7MF15654BF005EA1 | SENSOR, LIQUID/GAS, 4-20MA, 0-60 PSIG | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 7MF15654BF005EA1
$323.16 each
View Details Siemens Building Technology 7MF15654CD005EA1 SENSOR, LIQUID/GAS, 4-20MA, 0-300 PSIG | Midwest Supply Us
7MF15654CD005EA1 | SENSOR, LIQUID/GAS, 4-20MA, 0-300 PSIG | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 7MF15654CD005EA1
$323.16 each
View Details Siemens Building Technology 587-180 Room Temperature Sensor, Blank Front, For Use With Siemens Talon Controllers | Midwest Supply Us
587-180 | Room Temperature Sensor, Blank Front, For Use With Siemens Talon Controllers | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 587-180
$80.54 each
View Details Siemens Building Technology 544-577-RK Immersion sensor repair kit, 1K Platinum RTD (375 alpha) models | Midwest Supply Us
544-577-RK | Immersion sensor repair kit, 1K Platinum RTD (375 alpha) models | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-577-RK
$81.02 each
View Details Siemens Building Technology 535-490-24 Rigid Averaging Duct Sensor, 20 to 120 Deg F, 24-Inch | Midwest Supply Us
535-490-24 | Rigid Averaging Duct Sensor, 20 to 120 Deg F, 24-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 535-490-24
$106.77 each
View Details Siemens Building Technology 536-774-25 Liquid Immersion Temperature Sensor, 100 Ohm Platinum RTD, 2.5-Inch | Midwest Supply Us
536-774-25 | Liquid Immersion Temperature Sensor, 100 Ohm Platinum RTD, 2.5-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-774-25
$114.74 each
View Details Siemens Building Technology 536-778 Outside Air Temperature Sensor, 100K Ohm Thermistor | Midwest Supply Us
536-778 | Outside Air Temperature Sensor, 100K Ohm Thermistor | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-778
$57.57 each
View Details Siemens Building Technology 544-339-4 Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 4-Inch | Midwest Supply Us
544-339-4 | Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 4-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-339-4
$54.98 each
View Details Siemens Building Technology 540-652B Room Temperature Sensor with Fan Speed Switch, White | Midwest Supply Us
540-652B | Room Temperature Sensor with Fan Speed Switch, White | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-652B
$920.43 each
View Details Siemens Building Technology 544-343-18 Rigid Averaging Duct Sensor, 1K Ohm Platinum, 18-Inch | Midwest Supply Us
544-343-18 | Rigid Averaging Duct Sensor, 1K Ohm Platinum, 18-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-343-18
$100.95 each
View Details Siemens Building Technology 540-670A Room Temperature Sensor, Sensing with Override, Setpoint | Midwest Supply Us
540-670A | Room Temperature Sensor, Sensing with Override, Setpoint | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-670A
$478.31 each
View Details Siemens Building Technology 544-343-24 Rigid Averaging Duct Sensor, 1K Ohm Platinum, 24-Inch | Midwest Supply Us
544-343-24 | Rigid Averaging Duct Sensor, 1K Ohm Platinum, 24-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-343-24
$100.95 each
View Details Siemens Building Technology 544-562-40 Liquid Immersion Temperature Sensor, 100 Ohm Platinum RTD, 4-Inch | Midwest Supply Us
544-562-40 | Liquid Immersion Temperature Sensor, 100 Ohm Platinum RTD, 4-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-562-40
$117.42 each
View Details Siemens Building Technology S55720-S575 QNA2820D.US | IAQ multi-sensor LoRaWAN US, RESET Certified | Midwest Supply Us
S55720-S575 | QNA2820D.US | IAQ multi-sensor LoRaWAN US, RESET Certified | Siemens Building Technology
Brand: Siemens Building Technology
SKU: S55720-S575
View Details
View Details Siemens Building Technology QVM62.1 Air Velocity Sensor, 0 to 10 Vdc | Midwest Supply Us
QVM62.1 | Air Velocity Sensor, 0 to 10 Vdc | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QVM62.1
$211.94 each
View Details Siemens Building Technology QFM3101 Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Midwest Supply Us
QFM3101 | Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFM3101
$250.02 each
View Details Siemens Building Technology QPA2282.EWSC Room CO2 + Temp Sensor, No HMI, Siemens Logo, Tool Port, TEC Controllers | Midwest Supply Us
QPA2282.EWSC | Room CO2 + Temp Sensor, No HMI, Siemens Logo, Tool Port, TEC Controllers | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QPA2282.EWSC
$459.11 each
View Details Siemens Building Technology QMX3.P30-1WNB ROOM SENSOR | Midwest Supply Us
QMX3.P30-1WNB | ROOM SENSOR | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QMX3.P30-1WNB
View Details
View Details Siemens Building Technology QFM4171 Duct RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Midwest Supply Us
QFM4171 | Duct RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFM4171
$644.02 each
View Details Siemens Building Technology QFA3280.DWSC Room Temp Sensor, RH 2%, for TEC, Digital signal, Sense & Display, Tool Port | Midwest Supply Us
QFA3280.DWSC | Room Temp Sensor, RH 2%, for TEC, Digital signal, Sense & Display, Tool Port | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA3280.DWSC
$214.26 each
View Details Siemens Building Technology QFA32SS.EWNN Room Humidity+Temp Sensor, 0-10V / 0-5V / 4-20 mA (selectable), No HMI, No Logo | Midwest Supply Us
QFA32SS.EWNN | Room Humidity+Temp Sensor, 0-10V / 0-5V / 4-20 mA (selectable), No HMI, No Logo | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA32SS.EWNN
$193.85 each
View Details Siemens Building Technology QFM2101 Duct Relative Humidity Temperature Sensor, 5 percent accuracy, 4-20 mA | Midwest Supply Us
QFM2101 | Duct Relative Humidity Temperature Sensor, 5 percent accuracy, 4-20 mA | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFM2101
$175.14 each
View Details Siemens Building Technology QFM2100 Duct Relative Humidity Sensor, 5 percent accuracy, 0-10 Vdc | Midwest Supply Us
QFM2100 | Duct Relative Humidity Sensor, 5 percent accuracy, 0-10 Vdc | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFM2100
$175.14 each
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