sensors
All Manufacturers
- 105/150/210
- 2532/2532FFU Series
- Alpine Series Boilers
- Boiler Control
- CMA/CMC/GMD1 Gas Furnace
- Commercial Water Heaters
- DAUC (090)
- DGD 060-120; G8D 060-120
- EBP/ED Series Boilers
- EFT
- EFTC-140F
- For Advantage Oil
- For Ventilation Fan
- For Ventilation Fan with Light
- G125BE
- HE/VHE Series
- HVACR Equipment
- Heating
- Hot Water Boilers
- Hot Water Supply Boilers
- Legend 1000
- Mascot LX
- Model 300-400-500 Series 200/201 BTH/SUF/HCG High Efficiency Commercial
- NT 750-1000
- R50/75 VA Series
- Residential/Light Commercial
- Sensor for HFC/HCFC/HFO Refrigerants
- Trio
- Washing Machine
- Water Heater
- Backflow Prevention Valves
- Chiller Parts
- Compressor Controls
- Flow Control Valves
- Gas Control Valves
- Gas Pilot & Ignition
- Gas Pilot & Ignition - Heating
- Gas Pilot & Ignition - Plumbing
- Heat Pump Parts
- Low Water Safety
- Metal Venting & Ductwork
- Mini-Split Ductless Parts
- OEM Boiler Parts
- Oil Boiler Parts
- Oil Tank Supplies
- Other HVAC Products
- Other Heating Parts
- Other Pump Parts
- Other Refrigeration Products
- Pressure Regulating & Relief Valves
- Radiator Valve Actuators
- Reset & Sequencing Controls
- Safety Switches & Limits
- Safety Switches & Limits - Heating
- Safety Switches & Limits - Plumbing
- Sensors
- Sensors - Controls
- Sensors - Heating
- Sensors - Plumbing
- Temperature Controllers
- Thermostats
- Unit Heater Parts
- Ventilation Products
- Water Heater Control Boards
- Water Heater Parts
- Wire Harness & Components
- Belimo FS Series
- Damper Actuator Accessories
- 0.5" Aluminum Static Tube Only with Circular Foam
- 2 Aluminum Static Pressure Tube Assemblies - 6” Long
- 6" Aluminum Probe and Circular Foam
- 6" Aluminum Probe w/ Tubing and Surge Damper
- Rough Service CO Sensor
- Rough Service CO Sensor with 10K-2 Thermistor Temp and %RH
- Rough Service CO Sensor with 10K-3 Thermistor Temp and %RH
- Rough Service CO Sensor with 20K Thermistor Temp and %RH
- Rough Service CO Sensor with BACnet Output
- Rough Service CO Sensor with Temp - %RH and BACnet Output
- Zero Depth Aluminum Unit (no probe) with Circular Foam
- 4640
- 4646
- 10401947
- 6535F
- 11752F
- 13163F
- 13164F
- 274428
- 274513
- 274598
- 274683
- 274751
- 274836
- 274934
- 275054
- 275174
- 275264
- 275404
- 275464
- 275600
- 276500
- 315180
- 382008
- 382024
- 382328
- 382570
- 382589
- 382820
- 383310
- 383542
- 384042
- 100110707
- 100110731
- 100110780
- 100111256
- 100111553
- 100112261
- 100112262
- 100112309
- 100112610
- 100112663
- 100113153
- 100187882
- 100217536
- 100272803
- 100276369
- 102711-01
- 102714-01
- 102717-01
- 103339-01
- 105648-01
- 10C188
- 10C486
- 350759
- 374A-30-34
- 394800-36
- 48-103
- 48-140
- 48-3250-58
- 48-3250-60
- 7250P-324
- 7450P-026
- 7600TSU
- 7855P-029
- 7855P-030
- 7855P-031
- 8310
- 87004000330
- 87004000400
- 88009301
- 88009303
- 88009307
- A0010401946
- Crown 230122
- Crown 230125
- FV-WCCS1
- FV-WCCS2
- IGT-SPR0102
- IGT-SPR0103
- 2532924000
- 1/8-27NPT PTC
- 100093745
- 100109908
- 100109966
- 100110227
- 100111979
- 100112470
- 100112471
- 100112473
- 100113052
- 100272810
- 100276324
- 100296920
- 100296951
- 100307280
- 100307281
- 10K OHMS
- 10K VERP
- 120 Harness
- 180DEG ECO
- 2 Level High Pressure
- 20K OHM NTC Linear
- 5H0749480001
- AMB/DIS/Coil
- Adapter and Sensor
- Adjustment Valve for Tankless Gas Water Heater
- Air Pressure APS-02-A
- Air Pressure for 100-140K BTU Models
- Air for Tankless Gas X3
- All
- Ambient
- Ambient Coil Discharge
- Ambient Outdoor
- Aquasmart Oil with 2N1R Sensor
- Aquastat High Limit with Automatic Reset
- Assembly
- Automatic with Leak Sensor
- Auxiliary with Bracket Y75GB-1
- BFU
- Battery Powered
- Black
- Boiler
- Boiler Oil with Temperature Only Sensor 120V
- Boiler Return
- CC/CH/CR/NR/NP Model
- Cable Overmold
- Cast Iron Sensor Chamber with Probes
- Clip for Water Heater
- Coil
- Compression Discharge Assembly
- Compressor
- Condensate Blockage Pressure Switch
- Condensation Sensor
- Condensation Sensor with Light Control
- Constant with Sensor
- Control Board
- Cover 4 Hole for RS-1 BR-1 Remote Sensor
- Cylinder
- D-TEK3 Refrigerant Infrared Sensor with Lithium-Ion Battery
- DHW
- DHW 120V
- DHW Flow KDC-FSAB PPS
- DHW Flow KDC-FSAB-FS PPS
- DHW Tank
- Detector
- Discharge
- Discharge 40-80 Min 80-140 Max
- Discharge BA/10K-2
- Door Estar ULN HW
- Dual Immersion for CH402
- Dual Outlet
- Duct Sensor 5 Pack
- Dwyer A306 Sensor
- ECO
- ECO Honeywell Polaris with Wires
- Ecobrass
- Electronic
- External NTC
- External Wired
- FK
- FV Sensor
- FV with Bracket
- FVIR Sensor Mount
- Flame Sensor
- Flame Sensor Burner
- Flame Sensor Electrode
- Flame Sensor NT
- Flame Sensor for KBN
- Flame Sensor with Gasket
- Flammable Vapor
- Flood 3H1009790003
- Flood 5H1026650001
- Flue
- Flue Gas
- Flue Gas Sensor
- Flue Kit
- Flue Temperature
- Flue Temperature Sensor
- Flue for Alpine 399-800
- Flue for Aspen
- Flue with Grommet
- For AFR Flame Sensor
- For Alpine
- For Coleman/Evcon Gas Furnace
- For DHW K2WTC 135/180
- For Dual Fuel SC4812/SC5812
- For Flame Sensor
- For Flue Temperature
- For HD30-125
- For Knight WHN/KH055-285
- For Magnatherm 1600
- For NKC110/150/199
- For SC1000-3000 SC4010/SC5010
- For SC4000/SC5000 EXPT SC4010/SC5010
- For TC/TF/SC/SF Heater
- For TD121
- For Tank
- For Tank Assembly CAHP 120
- For Upper Lower Tank Temperature
- Freeze
- GEN-I
- GEN-II
- Gas for GB
- Gas with Cable
- Greentherm Exhaust Back Flow
- Harness
- Header 10K for Condensing Boiler
- Heater
- High Limit
- Hot Surface/Flame Sensor 80VAC 100111772
- Hot Surface/Flame Sensor 80VAC 100113162
- HydroStat Wall/Jacket with 10FT Sensor
- Hydrostat Less Sensor
- Hydrostat with 12 Inch Sensor
- Igniter Flame Sensor
- Igniter Sensor
- Igniter Sensor Electronic LEC PENN Y75AA-3D
- Igniter with Gasket
- Ignition Sensor
- Ignition/Sensor
- Indeeco 310-10-40-43C06B
- Indirect Tank
- Inlet
- Inlet Water
- Inlet/Outlet
- Inlet/Outlet 3-Wire
- Insight Long Life with 02 Sensor
- Integral Setpoint
- Kit
- Kit IQ251D
- Kit for Hydrolevel 48-140
- Kit with Sensor
- Kit-S CH
- Kit-S DHW Probe
- Kit-S Flue
- LDM 100305039
- Limit
- Limit Rated Outlet
- Liquid
- Liquid with 39 Inch Leads
- Lockout
- Low Thermal with Female Connection
- Low Water
- Low Water Cut Off
- Low Water Cut Off and Temperature
- Low Water Cut Off with Automatic Reset
- Low Water Cut Off with Manual Reset
- Lower
- Lower C/W Molex
- Main
- Main Unit with Flow Sensor
- Model P-1/3-SS
- Module with Sensor Circuit
- Moisture Level 1-Chamber
- Moisture Level 2-Chamber
- Moisture Level 4-Chamber
- Motion Wireless Control-R
- Mount FVIR Black
- Multi Assembly
- NTC 10K 3 Per Cent
- NTC Control Stat
- NTI
- Negative Temperature Coefficient T1/T3
- Negative Temperature Coefficient T2/T3/T8/T9
- Old SAP 100170535
- Outdoor
- Outdoor Air
- Outdoor Air Combination
- Outdoor Air Temperature Reset
- Outdoor Kit-S
- Outdoor NTC
- Outdoor Temperature
- Outdoor for VisionPro Series
- Outdoor with Cable
- Outdoor/Slab
- Outlet High Limit
- Outside
- Outside Air
- Overheat Cutoff
- Overheat Eco
- Oxygen
- PSE-GW1
- PT 100 RTD
- Polaris Bagged
- Pressure
- Pressure Sensor 10-Piece
- Probe
- Probe Kit
- Probe for 4 Level Remote Sensor Model RS-4-BR-1
- Probe for PAH55
- Push In Limiter Assembly
- RET Temperature Sensor
- RS-1-LP Low Pressure Sensor
- RZ272743
- Radiator Head
- Rear with Gasket for FB751-200
- Reduced Pressure Zone Assembly
- Reed
- Remote Control
- Remote High
- Repair Kit
- Replacement
- Replacement Temperature
- Reporting Kit with O2 Sensor
- Reset
- Return
- Return Air
- Return Heating Only 80 120 150 180
- Rocket Fuel
- Rod
- SPC CL77
- Safety NTC
- Secondary Tasseron
- Sensor
- Sensor 1769-82
- Sensor JC Y75MK-1D
- Sensor PSE-RZ11
- Sensor for GDHE-50-NG
- Single Level Remote High Pressure
- Spare Parts Kit
- Suction Line
- Supply
- Supply Limit Rated for Alpine 399-800
- Supply Repair
- Supply Temperature
- Supply Temperature Sensor
- Supply and Return
- Supply/Return
- Supply/Return Water Temperature
- Switch Conversion Kit
- System
- System 100296899
- System Assembly for CAHP 120
- T701-111R
- Tank
- Temperature Liquid
- Temperature Sensor Conduit Assembly
- Temperature and Pressure
- Temperature for FTX400-850(N/L) Heating Boiler
- Ultrasonic
- Unit with Flow Sensor
- Universal 10K OHMS
- Universal 3-In-1 Outdoor
- Universal Automatic Make-Up Air with Pressure Sensor Kit
- Universal with Washer
- Upper
- Upper Element for Water Heater
- Upper Lower
- Upper Lower Temperature Assembly
- Upper Thermal with Female Connection
- Upper for ECO Molex
- Upper for GSW 52710
- Vapor
- Washing Machine Automatic Shut-Off Valve with Leak Sensor
- Water
- Water Closet
- Water Heater
- Water Heater FV
- Water Heater Vapor
- Water Pressure
- Water Return with Clamp 12IN Lead
- Water Servo with Sensor Kit
- Water Supply/Return
- Water Temperature
- Water/Air NSF Compliant
- Whisper LED Light DC Motor Sensor
- Wired Indoor Remote
- With Adapter Cable
- With Bracket and Gasket
- With Bulb Well/Sleeve
- With Gasket
- With Gasket 100278782
- With Gasket 100278783
- With Gasket and Screws
- With Gasket for AP400-850
- With Gasket for EF Series
- With Gasket for FB751-2001
- With Gasket for KBN399/500
- With Gasket for SB100-1500/KBN600-800
- With Grommet All
- With Grommet for NKC110/150/199
- With Grommet for PWH1250-4000
- With Hall Sensor
- With Remote Sensor RX2 Probe
- With Screws
- With Sensor 0.340IN Orifice
- With Wiring Harness
- 0.75x1.5x2.75IN
- 1 to 1-1/4IN
- 1-1/2 to 2IN
- 1-1/2IN
- 1-1/4IN
- 1/2IN
- 1/2x3/4IN
- 1/4IN NPT
- 1/4x1/32IN
- 1/8-27 NPT NSF
- 11Lx6Wx2HIN
- 12IN
- 1IN
- 1x1-1/4IN
- 1x1IN
- 1x3-7/8x3-5/32IN
- 2-1/2IN
- 2-1/2IN NPT
- 2-1/4x3/8IN
- 2IN
- 2x2IN
- 3-5/8IN
- 3-7/8IN
- 3.75" x 5.5”
- 3.75" x 5.5” Europe
- 3/4IN
- 3/4IN NPT
- 30IN
- 36IN
- 3IN
- 3Lx6Wx3HIN
- 4-1/2IN
- 4.1IN
- 4.3IN
- 4.5x2.75x1IN
- 48IN
- 4IN
- 5.25" x 7”
- 5.3" x 5.3”
- 6FT
- 6IN
- 6MM
- 7x4x8IN
- 8-3/16x2-3/4x2-3/4IN
- 8IN
- 151
- 2107 Logamatic
- 90000B2S
- Actuation Control
- All-CC/CH/CR/NR/NP Model
- Alpine
- AquaBalance 80/120/155
- AquaBalance Series 2 Gas Fired Water Boilers
- BTH 300/40/500 and 200/201 Commercial Gas Water Heater
- Boiler
- Bosch Tankless Water Heater
- CC/CR/NR/NP Models
- CG Series
- CG/CGM Series
- CH-ASME Model
- CH/NCB Model
- Chilled Water
- E/Q Series
- E110CN/E75/Q130
- E50C
- EBP 110-175 Series Boilers; New Style After 2005
- EBP/ED Series Boilers
- ES2; Series 3; ESC; and MPO-IQ Series Boilers
- Elite/Elite FT/Elite Plus/Elite VWH/Phoenix Light Duty Water Heaters
- Endurance EBP Series Space/Water Heating Boiler
- FB N/L 751/1001/1501
- FT30-300 Units
- FTX N/L 400-850 Heating Boiler
- FTX400/500/600/725L/N
- Freedom FCM070; FCM090; and FCM120 Boilers
- Freedom Series Boilers
- Fyrite INSIGHT/ECA 450/Fyrite Tech 60
- Fyrite Residential Combustion Analyzers
- GB
- GB142 Series
- GB162
- GV-3 Trim Boilers
- Greenstar FB100
- Greentherm
- Heat Pump
- Heating Boiler
- HydroStat 3200-Plus/3250-Plus Only
- Hydrostat
- JV
- K2 080-120
- KB399 to 800 Heating Boiler
- KBR/KWB/ZBR
- KBR/KWB/ZBR/ZWR
- Logamatic
- Logamatic Solar Controls
- MC50/80/99/120
- MFTCW140
- MT2/Penn 200-2000
- Modcon VWH
- Model 1U09AP2VHA/1U09BU1ERH/1U09EH2VHA/1U09TE1VHA/1U12AP2VHA/1U12BU1ERH
- Model GEN I/GEN II
- Model GPSH 40/50 Residential Water Heater
- Model GX2TW25S/TW25S/BN SX/TW25X76B/S3N/X M1TW/M2TW Water Heaters
- Model MIITW50TLN; EN-10
- Model PDV80T199/300/E/N/X/A
- Model SSB
- Model i201X/i251X
- Models 100 FVIR GS6; GPV Residential Power Vent Gas
- Models 40; 50;75 GPD; 50 GPDX Gas Power Direct-Vent
- Multilevel Control
- NCB Model
- NCB NHB
- NKC110-199
- NKC110/150/199
- NPE A Series
- NPE Series APS-02-A
- NPES Model
- OK151-286 Heating Boilers
- PCA 20/PCA3; Combustion and Emissions Analyzers
- Pilot/Burner Assembly
- Power vent Models
- RS Series Sensors
- Range Hood Universal Automatic
- SMB/SMW 200/250; EBP/ED 110-175 Series Boilers
- SSB255/399/819/1024/1024TL
- SSB85-SSB160
- Series 750B Remote Mount Control Modules
- Series Greentherm
- Sizes 080-180
- T/EL/ELP
- T/MC/EL/EFT
- T50M/80M/140M/199M/399M/MC
- T755S; T855S and T955S
- TK-510C-NI/TK-310C-NI/TK-110C-NI/NG Water Heater
- TS144
- Tankless Water Heater
- Ultra 3 Commercial Boilers
- Ultra Series
- Ultra Series 310
- Ultra and GV90 Series
- V100 and V2000 Series Radiator Valves
- Vision 1 Control
- W7010/20 and W7025
- W7210; W7212; W7213; W7214; W7215; W7459; W7460
- Water Heater
- XI600 and 500
- XL10; W7751
- ZBR/ZWB Condensing Gas Boilers
- ZWB Condensing Gas Boilers
Sensors measure physical conditions like humidity, light, sound, and temperature. They can be made from various materials, but most have both a detecting and an output or display component.
How Sensors Work
Sensors detect and respond to physical environment inputs such as light, heat, motion, moisture, pressure, or other environmental phenomena. Generally, the output is a signal converted to a readable display at the sensor location or transmitted electronically over a network for reading or further processing.
What Makes a Good Sensor?
It is critical to consider temperature, size, protection class, and whether the sensor requires digital or analog input. Other qualities to look out for include affordability, low installation costs, and low maintenance. That's why we stock first-rate Bapi, Bellimo, and Jergens Sensors.
What Types of Sensor Do We Provide?
At Midwest Supply, we have a range of rooftop, wall mount, and vertical mount sensors, including accessories, to meet your residential and commercial needs. Our sensors’ average length is between 10ft-20ft with temperature ranges from 13-30°C and 55-85°F.
Midwest Supply’s current line includes:
- Duct Sensors
- Outside Sensors
- Pressure Sensors
- Room Sensors
- Gas Sensors
- Strap Sensors
- Bullet Sensors
More About Bacnet® and Modbus Communication
Bacnet® and Modbus refer to standard network communication protocols.
BACnet®, short for "Building Automation Control Network", is a data communication protocol for building automation and control networks that utilize the ASHRAE, ANSI, and ISO 16484-5 standards protocol. It's used for multiple devices to communicate across building automation systems by system users and building system manufacturers.
Modbus is one of the oldest protocols for devices to communicate their data digitally to a central controller. While it is best suited for industrial applications, its simplicity also makes it useful for building automation.
Our friendly and knowledgeable customer service staff can help you find a suitable sensor for your system if you are still deciding what to buy.