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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 536-984 Room Temperature Sensor, Flush-mount, Metal, 100K ohm | Midwest Supply Us
536-984 | Room Temperature Sensor, Flush-mount, Metal, 100K ohm | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-984
$28.66 each
View Details Siemens Building Technology 536-768 Outside Air Temperature Sensor, Through-the-wall, 4 to 20 mA | Midwest Supply Us
536-768 | Outside Air Temperature Sensor, Through-the-wall, 4 to 20 mA | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-768
$133.57 each
View Details Siemens Building Technology 536-777-25 Liquid Immersion Temperature Sensor, 100K Ohm Type 2, 2.5-Inch | Midwest Supply Us
536-777-25 | Liquid Immersion Temperature Sensor, 100K Ohm Type 2, 2.5-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-777-25
$81.28 each
View Details Siemens Building Technology 540-984 Room Temperature Sensor, Flush-mount, Metal, 10K Type II | Midwest Supply Us
540-984 | Room Temperature Sensor, Flush-mount, Metal, 10K Type II | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-984
$27.62 each
View Details Siemens Building Technology 544-577-25 Liquid Immersion Temperature Sensor, 1K Ohm Platinum, (375 Alpha), 2.5-Inch | Midwest Supply Us
544-577-25 | Liquid Immersion Temperature Sensor, 1K Ohm Platinum, (375 Alpha), 2.5-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-577-25
$89.04 each
View Details Siemens Building Technology 533-377-18 Duct Point Temperature Sensor, Platinum, 30 to 250 Deg F, 18-Inch | Midwest Supply Us
533-377-18 | Duct Point Temperature Sensor, Platinum, 30 to 250 Deg F, 18-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 533-377-18
$82.74 each
View Details Siemens Building Technology 533-380-16 Flexible Averaging Duct Sensor, 20 to 120 Deg F, 16-Foot | Midwest Supply Us
533-380-16 | Flexible Averaging Duct Sensor, 20 to 120 Deg F, 16-Foot | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 533-380-16
$138.29 each
View Details Siemens Building Technology 533-376-18 Duct Point Temperature Sensor, Platinum, 20 to 120 Deg F, 18-Inch | Midwest Supply Us
533-376-18 | Duct Point Temperature Sensor, Platinum, 20 to 120 Deg F, 18-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 533-376-18
$82.72 each
View Details Siemens Building Technology 590-505 590 Series Differential Pressure Sensor, +/- 0.25" Water Column | Midwest Supply Us
590-505 | 590 Series Differential Pressure Sensor, +/- 0.25" Water Column | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 590-505
View Details
View Details Siemens Building Technology QFR9530.KIT QFR9530 with AQM5H Harness Duct Surface Mount RH&T Sensor and wiring harness | Midwest Supply Us
QFR9530.KIT | QFR9530 with AQM5H Harness Duct Surface Mount RH&T Sensor and wiring harness | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFR9530.KIT
$83.43 each
View Details Siemens Building Technology QFM2120 Duct RH and Temp Sensor, 5 percent, RH: 0-10 Vdc, T: 1K ohm Nickel | Midwest Supply Us
QFM2120 | Duct RH and Temp Sensor, 5 percent, RH: 0-10 Vdc, T: 1K ohm Nickel | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFM2120
$201.62 each
View Details Siemens Building Technology QFM2160U Duct RH and Temp Sensor, 5 percent accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Midwest Supply Us
QFM2160U | Duct RH and Temp Sensor, 5 percent accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFM2160U
$201.62 each
View Details Siemens Building Technology QFA3280.FWNC Room Temp Sensor, RH 2%, TEC, Dig signal, Sense & Display, Override, Temp Setpt | Midwest Supply Us
QFA3280.FWNC | Room Temp Sensor, RH 2%, TEC, Dig signal, Sense & Display, Override, Temp Setpt | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA3280.FWNC
$222.19 each
View Details Siemens Building Technology QFA3230.FWNN Room Humidity + Temperature Sensor, Full Featuire, No Logo | Midwest Supply Us
QFA3230.FWNN | Room Humidity + Temperature Sensor, Full Featuire, No Logo | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA3230.FWNN
$233.67 each
View Details Siemens Building Technology QFA3171D Outside Air RH & T Sensor, 2 percent, RH: 4-20 mA T: 4-20 mA, Display | Midwest Supply Us
QFA3171D | Outside Air RH & T Sensor, 2 percent, RH: 4-20 mA T: 4-20 mA, Display | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA3171D
$378.03 each
View Details Siemens Building Technology QFA3160 Outside Air RH and Temp Sensor, 2 percent, RH: 0-10 Vdc, T: 0-10 Vdc | Midwest Supply Us
QFA3160 | Outside Air RH and Temp Sensor, 2 percent, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA3160
$306.44 each
View Details Siemens Building Technology QAP1030.200 Cable Temperature Sensor, NTC 10K Ohm, Type II | Midwest Supply Us
QAP1030.200 | Cable Temperature Sensor, NTC 10K Ohm, Type II | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAP1030.200
$25.81 each
View Details Siemens Building Technology QAM2030.045 Duct Point Temperature Sensor, 10K Ohm NTC Type 2, 18-Inch | Midwest Supply Us
QAM2030.045 | Duct Point Temperature Sensor, 10K Ohm NTC Type 2, 18-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAM2030.045
$35.59 each
View Details Siemens Building Technology QAA2290.FWSC Room Temperature Sensor, Wireless - Mesh, Full Feature, Siemens Logo | Midwest Supply Us
QAA2290.FWSC | Room Temperature Sensor, Wireless - Mesh, Full Feature, Siemens Logo | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAA2290.FWSC
View Details
View Details Siemens Building Technology QAE2030.010 Immersion Well Temperature Sensor, 10K Ohm Type 2, 4-inch | Midwest Supply Us
QAE2030.010 | Immersion Well Temperature Sensor, 10K Ohm Type 2, 4-inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAE2030.010
$63.24 each
View Details Siemens Building Technology AQM2200 MOUNTING KIT FOR DUCT POINT SENSOR | Midwest Supply Us
AQM2200 | MOUNTING KIT FOR DUCT POINT SENSOR | Siemens Building Technology
Brand: Siemens Building Technology
SKU: AQM2200
$69.99 each
View Details Siemens Building Technology 7MF15654BG105EA1 SENSOR, LIQUID/GAS, 0-10V, 0-100 PSIG | Midwest Supply Us
7MF15654BG105EA1 | SENSOR, LIQUID/GAS, 0-10V, 0-100 PSIG | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 7MF15654BG105EA1
$313.93 each
View Details Siemens Building Technology 536-376 Air Velocity Sensor Pickup Probe Kit, 2-pipe, 6" (152 mm) | Midwest Supply Us
536-376 | Air Velocity Sensor Pickup Probe Kit, 2-pipe, 6" (152 mm) | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-376
$79.93 each
View Details Siemens Building Technology 536-378 Air Velocity Sensor Pickup Probe Kit, 2-pipe, 8" (203 mm) | Midwest Supply Us
536-378 | Air Velocity Sensor Pickup Probe Kit, 2-pipe, 8" (203 mm) | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-378
$79.93 each
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