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Thermostats / Sensors

Thermostats / Sensors

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    Schneider Electric (Viconics) 2212-119-48 48 Pack of RA Thermostat Only

    Schneider Electric (Barber Colman)

    MSRP: $12,787.91
    Now: $9,881.57
    Schneider Electric (Viconics) 2212-119-48 48 Pack of RA Thermostat Only   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $12,787.91
    Now: $9,881.57
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    Schneider Electric (Viconics) 2212-118-48 48 Pack of DA Thermostat Only

    Schneider Electric (Viconics)

    MSRP: $9,573.61
    Now: $7,252.74
    Schneider Electric (Viconics) 2212-118-48 48 Pack of DA Thermostat Only  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $9,573.61
    Now: $7,252.74
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    York 025-47670-000 (replacement for 025-32924-000) Discharge Temperature Sensor

    York

    MSRP: $326.55
    Now: $247.39
    York # 025-47670-000  Discharge Temperature Sensor This is the updated version for 025-32924-000  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Every time No...
    MSRP: $326.55
    Now: $247.39
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    Honeywell Analytics M-700061 IR-F9-R407a 0/1000ppm IR Sensor

    Honeywell Analytics

    MSRP: $2,542.25
    Now: $1,925.95
    Honeywell Analytics M-700061 IR-F9-R407a 0/1000ppm IR Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $2,542.25
    Now: $1,925.95
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    Honeywell Analytics M-510000 VL-F7-NH3-N4-LPA-MK Sensor

    Honeywell Analytics

    MSRP: $2,961.57
    Now: $2,243.61
    Honeywell Analytics M-510000 VL-F7-NH3-N4-LPA-MK Sensor FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $2,961.57
    Now: $2,243.61
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    Honeywell Analytics SPXCDULNO1M Gas Sensor

    Honeywell Analytics

    MSRP: $2,767.31
    Now: $2,096.45
    Honeywell Analytics SPXCDULNO1M Gas Sensor   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $2,767.31
    Now: $2,096.45
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    Honeywell Analytics S301-IRF-R134A R134A Refrigerant Gas Sensor

    Honeywell Analytics

    MSRP: $3,164.88
    Now: $2,445.59
    Honeywell Analytics S301-IRF-R134A R134A Refrigerant Gas Sensor Item is Non Cancelable / Non Returnable FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...
    MSRP: $3,164.88
    Now: $2,445.59
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    Honeywell Analytics S301-IRF-R123 R123 Refrigerant Gas Sensor

    Honeywell Analytics

    MSRP: $3,015.36
    Now: $2,330.05
    Honeywell Analytics S301-IRF-R123 R123 Refrigerant Gas Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $3,015.36
    Now: $2,330.05
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    Honeywell Analytics S301-IRF-R11 R11 Refrigerant Gas Sensor

    Honeywell Analytics

    MSRP: $3,246.34
    Now: $2,459.35
    Honeywell Analytics S301-IRF-R11 R11 Refrigerant Gas Sensor   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $3,246.34
    Now: $2,459.35
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    Fireye NX1021-1 Gas Pressure Sensor

    Fireye

    MSRP: $1,563.11
    Now: $1,207.86
    Fireye NX1021-1 Gas Pressure Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,563.11
    Now: $1,207.86
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    Fireye PXMS-300K Steam Pressure Sensor 0/300,4-20ma

    Fireye

    MSRP: $1,654.34
    Now: $1,253.29
    Fireye PXMS-300K Steam Pressure Sensor 0/300,4-20ma  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,654.34
    Now: $1,253.29
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    Fireye PXMS-200K Steam Pressure Sensor 0/200,4/20ma

    Fireye

    MSRP: $1,834.92
    Now: $1,417.89
    Fireye PXMS-200K Steam Pressure Sensor 0/200,4/20ma  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,834.92
    Now: $1,417.89
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    Fireye NX1030-1 Steam Sensor 0/362

    Fireye

    MSRP: $1,659.98
    Now: $1,282.71
    Fireye NX1030-1 Steam Sensor 0/362  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,659.98
    Now: $1,282.71
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    MSRP: $1,659.98
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    Carrier 0843P-0587 Outdoor Tem/Humidity Sensor

    Carrier

    MSRP: $3,501.17
    Now: $2,705.45
    Carrier 0843P-0587 Outdoor Tem/Humidity Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $3,501.17
    Now: $2,705.45
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    MSRP: $3,501.17
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    Trane SEN1092 Co2 Duct Sensor

    Trane

    MSRP: $841.00
    Now: $649.87
    Trane SEN1092 Co2 Duct Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $841.00
    Now: $649.87
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    MSRP: $841.00
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    Trane SEN2128 2.2" Liquid Level Sensor & Gasket

    Trane

    MSRP: $1,173.41
    Now: $906.73
    Trane SEN2128 2.2" Liquid Level Sensor & Gasket  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,173.41
    Now: $906.73
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    MSRP: $1,173.41
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    Trane SEN0045 20/90F 2Lead Water Temp Sensor

    Trane

    MSRP: $1,239.00
    Now: $938.64
    Trane SEN0045 20/90F 2Lead Water Temp Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,239.00
    Now: $938.64
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    MSRP: $1,239.00
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    Siemens Building Technology QPA2002D Co2 Room Air Quality Sensor 0-10V w/Display

    Siemens Building Technology

    MSRP: $643.50
    Now: $487.50
    Siemens Building Technology QPA2002D Co2 Room Air Quality Sensor 0-10V w/Display  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $643.50
    Now: $487.50
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    MSRP: $643.50
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    Siemens Building Technology QFA4171 Outdoor Air Rh & T 4-20Ma

    Siemens Building Technology

    MSRP: $789.11
    Now: $597.81
    Siemens Building Technology QFA4171 Outdoor Air Rh & T 4-20Ma  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $789.11
    Now: $597.81
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    MSRP: $789.11
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    Schneider Electric (Viconics) TP-1011 55/85F Prop. Thermostat,24V Spdt

    Schneider Electric (Barber Colman)

    MSRP: $1,397.40
    Now: $1,079.81
    Schneider Electric (Viconics) TP-1011 55/85F Prop. Thermostat,24V Spdt  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $1,397.40
    Now: $1,079.81
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    MSRP: $1,397.40
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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.