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Thermostats / Sensors

Thermostats / Sensors

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    Trane SEN02528 Flame Sensor

    Trane

    MSRP: $172.42
    Now: $133.24
    Trane SEN02528 Flame Sensor  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $172.42
    Now: $133.24
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    Schneider Electric (Barber Colman) TC-2931 Changeover Thermostat, Strap On Style

    Schneider Electric (Barber Colman)

    MSRP: $73.41
    Now: $56.72
    Schneider Electric (Barber Colman) TC-2931 Changeover Thermostat, Strap On Style Summer/Winter 75 Degree Approximate Fixed Setpoint 15 Degree Approximate Differential 90 Degree Minimum Hot Water Temperature 60 Degree Max Chilled Water Temperature ...
    MSRP: $73.41
    Now: $56.72
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    Carrier SYSTXCCITC01-C Infinity WiFi Touch Screen

    Carrier

    MSRP: $1,728.97
    Now: $1,336.02
    Carrier SYSTXCCITC01-C Infinity WiFi Touch Screen FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $1,728.97
    Now: $1,336.02
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    Rectorseal 96108 AG 1250E Sensor Metal/Plastic

    Rectorseal

    MSRP: $38.64
    Now: $29.86
    Rectorseal 96108 AG 1250E Sensor Metal/Plastic  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $38.64
    Now: $29.86
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    Bard HVAC 8403-038BX Humidistat

    Bard HVAC

    MSRP: $537.01
    Now: $406.83
    Bard HVAC 8403-038BX Humidistat FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $537.01
    Now: $406.83
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    Lochinvar & A.O. Smith 100109598 TOD Thermostat w/Eco Protector

    Lochinvar & A.O. Smith

    MSRP: $27.03
    Now: $20.48
    Lochinvar & A.O. Smith 100109598 TOD Thermostat w/Eco Protector  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless...
    MSRP: $27.03
    Now: $20.48
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    Lochinvar & A.O. Smith 100109597 Thermostat Mounting Bracket

    Lochinvar & A.O. Smith

    MSRP: $32.17
    Now: $24.86
    Lochinvar & A.O. Smith 100109597 Thermostat Mounting Bracket  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted...
    MSRP: $32.17
    Now: $24.86
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    Johnson Controls TE-631GV-2 Temperature Sensor, Flange Mount, 4" Probe Length, 1K Ohm

    Johnson Controls

    MSRP: $38.64
    Now: $29.86
    Johnson Controls TE-631GV-2 Temperature Sensor  Flange Mount 4" Probe Length Nickel Element 1K Ohm FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No...
    MSRP: $38.64
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    Johnson Controls HL-69158NP-0 Multi-Function Humid w/Temp Sensor Vdc

    Johnson Controls

    MSRP: $463.65
    Now: $358.28
    Johnson Controls HL-69158NP-0 Multi-Function Humid w/Temp Sensor Vdc FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted...
    MSRP: $463.65
    Now: $358.28
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    Schneider Electric (Viconics) VT7300F5031B-ECM 2-PIPE ECM 0-10V Thermostat

    Schneider Electric (Barber Colman)

    MSRP: $454.79
    Now: $351.43
    Schneider Electric (Viconics) VT7300F5031B-ECM 2-PIPE ECM 0-10V Thermostat  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements...
    MSRP: $454.79
    Now: $351.43
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    Johnson Controls TE-68NT-1N00S Temperature Sensor, 1K Ohm Nickel Element

    Johnson Controls

    MSRP: $110.65
    Now: $85.50
    Johnson Controls TE-68NT-1N00S Temperature Sensor  1K Ohm Nickel Element Warmer/Cooler Temperature Setpoint Adjustment Override Terminal Block Connection FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...
    MSRP: $110.65
    Now: $85.50
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    Johnson Controls NSB8BPN240-0 Temp/Hum White Sensor w/DSPL/Logo

    Johnson Controls

    MSRP: $815.69
    Now: $630.31
    Johnson Controls NSB8BPN240-0 Temp/Hum White Sensor w/DSPL/Logo  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted...
    MSRP: $815.69
    Now: $630.31
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    Johnson Controls TE-68PT-1N00S 1K Platinum Sensor 65-85F

    Johnson Controls

    MSRP: $114.11
    Now: $88.18
    Johnson Controls TE-68PT-1N00S 1K Platinum Sensor 65-85F FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $114.11
    Now: $88.18
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    Johnson Controls NSB8BHN240-0 Temp/Hum White Sensor w/DSPL/Logo

    Johnson Controls

    MSRP: $492.41
    Now: $380.50
    Johnson Controls NSB8BHN240-0 Temp/Hum White Sensor w/DSPL/Logo  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted...
    MSRP: $492.41
    Now: $380.50
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    Trane SEN1287 6" Therm Duct/Imm Temp Sensor

    Trane

    MSRP: $199.85
    Now: $154.43
    Trane SEN1287 Therm Duct/Imm Temp Sensor  6"  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $199.85
    Now: $154.43
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    Mitsubishi Electric R01E14208 High Pressure Sensor

    Mitsubishi Electric

    MSRP: $159.74
    Now: $123.43
    Mitsubishi Electric R01E14208 High Pressure Sensor FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $159.74
    Now: $123.43
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    Mitsubishi Electric SS610E Drain Pan Water Level Sensor

    Mitsubishi Electric

    MSRP: $204.62
    Now: $158.11
    Mitsubishi Electric SS610E Drain Pan Water Level Sensor FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $204.62
    Now: $158.11
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    Lennox 22V24 Smart Stat S40 WIFI 3HT/2CL

    Lennox

    MSRP: $1,054.15
    Now: $814.57
    Lennox 22V24 Smart Stat S40 WIFI 3HT/2CL FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $1,054.15
    Now: $814.57
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    Mamac Systems TE-702-C-7-A Duct Temperature Sensor with 10,000 Ohm NTC Thermistor (Type III) Sensor

    Mamac

    MSRP: $34.90
    Now: $26.44
    Mamac Systems TE-702-C-7-A Duct Temperature Sensor with 10,000 Ohm NTC Thermistor (Type III) Sensor 4" Probe Length NEMA 4 Painted Steel Enclosure FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...
    MSRP: $34.90
    Now: $26.44
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    Burnham Boiler 108703-01 Sensor 10K OHM

    Burnham Boiler

    MSRP: $154.23
    Now: $119.17
    Burnham Boiler 108703-01 Sensor 10K OHM FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $154.23
    Now: $119.17
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Thermostats and Sensors for HVAC Systems 

HVAC thermostats and furnace sensors are essential for regulating system performance, energy efficiency, and safety. These components monitor conditions such as temperature, pressure, and flame status, ensuring furnaces, air conditioners, and heat pumps operate correctly. Furnace Part Source offers a wide range of OEM furnace sensors and thermostats for both residential and commercial applications. 

Types of HVAC Thermostats 

  • Non-Programmable Thermostats – Manual models that maintain a set temperature until adjusted.
  • Programmable Thermostats – Digital controls with scheduling features to reduce energy usage during off
  • Smart Thermostats – Wi-Fi connected, app-enabled devices with advanced features like occupancy detection and zoning compatibility. 

Compatibility and Replacement 

Selecting the correct OEM thermostat or sensor ensures accurate readings and reliable operation. Always verify part numbers, voltage requirements, and system configuration (single-stage, multi-stage, or heat pump) before replacing components. 

Maintenance and Upgrades 

Faulty sensors can cause misreadings, wasted energy, or system shutdowns. Replacing worn parts or upgrading to energy-efficient thermostats restores system reliability, reduces utility costs, and extends equipment life. 

Wide Selection from Furnace Part Source 

With access to over 500,000 parts from 300+ manufacturers, Furnace Part Source provides the right solution for any repair or upgrade. From thermistors to programmable thermostats, our catalog includes components designed for both residential and commercial HVAC systems. 

Frequently Asked Questions 

What types of thermostats are available for HVAC systems? 

Options include non-programmable, programmable, and smart thermostats, each offering different levels of control and energy efficiency. 

How do I know if my furnace sensor needs replacement?

Signs include frequent system shutdowns, inaccurate temperature readings, or ignition failures.  

Why should I use OEM furnace sensors? 

OEM parts ensure proper fit, compatibility, and performance, reducing the risk of system malfunctions.

What is the difference between a thermocouple and a flame sensor? 

Thermocouples generate voltage to detect a pilot flame, while modern flame sensors use electronic signals to confirm burner ignition. 

Can upgrading to a smart thermostat improve efficiency?

Yes. Smart thermostats allow remote control, scheduling, and advanced optimization, often reducing energy costs.