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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 Viconics 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 QAM2012.750 DuctPoint Temperature Sensor, 1K Ohm Platinum (385 Alpha) 25-Foot | Midwest Supply Us
QAM2012.750 | DuctPoint Temperature Sensor, 1K Ohm Platinum (385 Alpha) 25-Foot | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAM2012.750
$125.45 each
View Details Siemens Building Technology QAM2012.250 Duct Point Temperature Sensor, 1K Ohm Platinum (385 Alpha) 8-Foot | Midwest Supply Us
QAM2012.250 | Duct Point Temperature Sensor, 1K Ohm Platinum (385 Alpha) 8-Foot | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAM2012.250
$115.31 each
View Details Siemens Building Technology QAE2012.010 Immersion Well Temperature Sensor, 1K Ohm Platinum (385 Alpha), 4" Probe | Midwest Supply Us
QAE2012.010 | Immersion Well Temperature Sensor, 1K Ohm Platinum (385 Alpha), 4" Probe | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAE2012.010
$69.98 each
View Details Siemens Building Technology QAE2030.015 Immersion Well Temperature Sensor, 10K Ohm Type 2, 6-inch | Midwest Supply Us
QAE2030.015 | Immersion Well Temperature Sensor, 10K Ohm Type 2, 6-inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAE2030.015
$73.63 each
View Details Siemens Building Technology QAC2030U Outside Air Temperature Sensor, 10K Ohm, Type 2. | Midwest Supply Us
QAC2030U | Outside Air Temperature Sensor, 10K Ohm, Type 2. | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAC2030U
$55.49 each
View Details Siemens Building Technology QAC2012U Outside Air Temperature Sensor, 1K Ohm Platinum (385 alpha) | Midwest Supply Us
QAC2012U | Outside Air Temperature Sensor, 1K Ohm Platinum (385 alpha) | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAC2012U
$62.89 each
View Details Siemens Building Technology QAA1011.AATU Button Room Temp Sensor with Wallplate, 1K Ohm RTD (375), Stainless Steel | Midwest Supply Us
QAA1011.AATU | Button Room Temp Sensor with Wallplate, 1K Ohm RTD (375), Stainless Steel | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAA1011.AATU
View Details
View Details Siemens Building Technology AQF4150 Calibrated duct relative humidity and temperature sensor tip. | Midwest Supply Us
AQF4150 | Calibrated duct relative humidity and temperature sensor tip. | Siemens Building Technology
Brand: Siemens Building Technology
SKU: AQF4150
$348.44 each
View Details Siemens Building Technology 7MF15654CB005EA1 SENSOR, LIQUID/GAS, 4-20MA, 0-200 PSIG | Midwest Supply Us
7MF15654CB005EA1 | SENSOR, LIQUID/GAS, 4-20MA, 0-200 PSIG | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 7MF15654CB005EA1
$333.25 each
View Details Siemens Building Technology 7MF15654CA105EA1 SENSOR, LIQUID/GAS, 0-10V, 0-150 PSIG | Midwest Supply Us
7MF15654CA105EA1 | SENSOR, LIQUID/GAS, 0-10V, 0-150 PSIG | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 7MF15654CA105EA1
$333.25 each
View Details Siemens Building Technology 7MF15654BG005EA1 SENSOR, LIQUID/GAS, 4-20MA, 0-100 PSIG | Midwest Supply Us
7MF15654BG005EA1 | SENSOR, LIQUID/GAS, 4-20MA, 0-100 PSIG | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 7MF15654BG005EA1
$333.25 each
View Details Siemens Building Technology 590-510 Differential Pressure Sensor in Conduit Box, 1% FS, +/- 0.25" WC, 0 to 10 Vdc | Midwest Supply Us
590-510 | Differential Pressure Sensor in Conduit Box, 1% FS, +/- 0.25" WC, 0 to 10 Vdc | Siemens Building Technology (OBSOLETE)
Brand: Siemens Building Technology
SKU: 590-510
View Details
View Details Siemens Building Technology 590-506 Differential Pressure Sensor in Conduit Box, 1% FS, 5" WC, 0 to 10 Vdc | Midwest Supply Us
590-506 | Differential Pressure Sensor in Conduit Box, 1% FS, 5" WC, 0 to 10 Vdc | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 590-506
View Details
View Details Siemens Building Technology 587-187 Room Temperature Sensor, Full HMI, For Use With Siemens Talon Controllers | Midwest Supply Us
587-187 | Room Temperature Sensor, Full HMI, For Use With Siemens Talon Controllers | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 587-187
$369.76 each
View Details Siemens Building Technology 540-258 Surface Mount Temperature Sensor (Pipe), 100K Ohm Thermistor, 1.25" w/ Clamps | Midwest Supply Us
540-258 | Surface Mount Temperature Sensor (Pipe), 100K Ohm Thermistor, 1.25" w/ Clamps | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-258
$36.63 each
View Details Siemens Building Technology 540-246-72 Flexible Averaging Duct Sensor, 100K Ohm, 6-Foot | Midwest Supply Us
540-246-72 | Flexible Averaging Duct Sensor, 100K Ohm, 6-Foot | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-246-72
$86.23 each
View Details Siemens Building Technology 536-774-60 Liquid Immersion Temperature Sensor, 100 Ohm Platinum RTD, 6-Inch | Midwest Supply Us
536-774-60 | Liquid Immersion Temperature Sensor, 100 Ohm Platinum RTD, 6-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-774-60
View Details
View Details Siemens Building Technology 536-777-40 Liquid Immersion Temperature Sensor, 100K Ohm Type 2, 4-Inch | Midwest Supply Us
536-777-40 | Liquid Immersion Temperature Sensor, 100K Ohm Type 2, 4-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 536-777-40
$87.61 each
View Details Siemens Building Technology 535-490-48 Rigid Averaging Duct Sensor, 20 to 120 Deg F, 48-Inch | Midwest Supply Us
535-490-48 | Rigid Averaging Duct Sensor, 20 to 120 Deg F, 48-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 535-490-48
$245.37 each
View Details Siemens Building Technology 533-377-4 Duct Point Temperature Sensor, Platinum, 30 to 250 Deg F, 4-Inch | Midwest Supply Us
533-377-4 | Duct Point Temperature Sensor, Platinum, 30 to 250 Deg F, 4-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 533-377-4
$89.85 each
View Details Siemens Building Technology QPM2180 Duct CO2 Sensor selectable resistance temperature output | Midwest Supply Us
QPM2180 | Duct CO2 Sensor selectable resistance temperature output | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QPM2180
View Details
View Details Siemens Building Technology QPM2102D Duct Sensor CO2 and VOC with Display, 0 to 10V | Midwest Supply Us
QPM2102D | Duct Sensor CO2 and VOC with Display, 0 to 10V | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QPM2102D
$650.19 each
View Details Siemens Building Technology QPA2080D Room CO2 Sensor selectable resistance temperature output and display. | Midwest Supply Us
QPA2080D | Room CO2 Sensor selectable resistance temperature output and display. | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QPA2080D
View Details
View Details Siemens Building Technology QAM2020.750 Duct Point Temperature Sensor, 1K Ohm Nickel at 32 Deg F, 24-Foot | Midwest Supply Us
QAM2020.750 | Duct Point Temperature Sensor, 1K Ohm Nickel at 32 Deg F, 24-Foot | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAM2020.750
View Details
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