Sensors, Safety Switches & Limits: Keep Your Heating Systems Running Safely
Midwest Supply offers a diverse selection of sensors, safety switches, and limit switches designed to ensure the safe and reliable operation of your heating systems. We carry a wide range of components from top brands, including temperature, pressure, flame, and safety sensors, ensuring you find the right solutions for your heating system.
All Manufacturers
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 
Armstrong International Sensors Atlas Copco Sensors Auburn Sensors Bacharach Sensors Baltimore Parts Sensors 
BAPI Sensors Barber Colman Sensors Bard HVAC Sensors 
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 
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
Armstrong International Sensors Atlas Copco Sensors Auburn Sensors Bacharach Sensors Baltimore Parts Sensors 
BAPI Sensors Barber Colman Sensors Bard HVAC Sensors 
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 
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
View Details
30014699A | Water Pressure Sensor for CH/NCB Model | Navien Boilers & Water Heaters
Brand: Navien Boilers & Water Heaters
SKU: 30014699A
View Details
7250P-019 | High Limit Sensor Munchkin ECO for T/EL/ELP | Heat Transfer Prod
Brand: Heat Transfer Prod
SKU: 7250P-019
View Details
106038-01 | Outdoor Sensor Kit for Hydrolevel 48-140 | Burnham Boilers
Brand: Burnham Boilers
SKU: 106038-01
View Details
8236040 | Probe Igniter Sensor Electronic LEC PENN Y75AA-3D | Burnham Boilers
Brand: Burnham Boilers
SKU: 8236040
View Details
179525 | Sensor RS-2BR-1 2 Level High Pressure 406 Degrees Fahrenheit 250 Pounds per Square Inch Gauge | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 179525
Committed to customer satisfaction
as experts in Sensors
Recently Viewed
Popular Products
View all →
NGR02-BBA | Gas Regulator | 3/4" NPT | 1/4" Orifice | Green Spring 6.5"-16"wc | Norgas Controls
Brand: Norgas Controls
SKU: NGR02-BBA
BA/10K-2-H210-D-BBX | Duct Humidity (%RH) Sensor with Optional Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-H210-D-BBX
N5D-1500-S | GAS REGULATOR, 1-1/2" NPT, SILVER SPRING 7-11"WC, 2 PSI CSA | Norgas Controls
Brand: Norgas Controls
SKU: N5D-1500-S
ZPS-ACC04-1 | Room Pressure Pickup Ports with Temperature Sensor | BAPI
Brand: BAPI
SKU: ZPS-ACC04-1
B214 | Characterized Control Valve (CCV), 1/2", 2-way | Belimo
Brand: Belimo
SKU: B214
EPRC1501-NL | EVERFLOW 1-1/2" X 1" PEX BARB RED. COUPLING LEAD FREE | Everflow
Brand: Everflow
SKU: EPRC1501-NL