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Thermostats / Sensors

Thermostats / Sensors

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    Honeywell Analytics S301-IRF-1233ZD 1233ZD Gas Sensor

    Honeywell Analytics

    MSRP: $3,415.73
    Now: $2,639.43
    Honeywell Analytics S301-IRF-1233ZD 1233ZD Gas Sensor FurnacePartSource.com Commitment
    MSRP: $3,415.73
    Now: $2,639.43
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    York 325-47588-006 (Replaces 025-46044-006) Liquid Level Sensor Kit 6"

    York - Applied

    MSRP: $3,668.54
    Now: $2,834.78
    York 325-47588-006 (Replaces 025-46044-006)  Liquid Level Sensor Kit 6" This is the Direct Repla
    MSRP: $3,668.54
    Now: $2,834.78
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    Honeywell Analytics M-510000 VL-F7-NH3-N4-LPA-MK Sensor

    Honeywell Analytics

    MSRP: $3,458.28
    Now: $2,672.31
    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...
    MSRP: $3,458.28
    Now: $2,672.31
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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...
    MSRP: $2,767.31
    Now: $2,096.45
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    Honeywell Analytics S301-IRF-R134A R134A Refrigerant Gas Sensor

    Honeywell Analytics

    MSRP: $3,196.96
    Now: $2,470.38
    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...
    MSRP: $3,196.96
    Now: $2,470.38
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    Honeywell Analytics S301-IRF-R123 R123 Refrigerant Gas Sensor

    Honeywell Analytics

    MSRP: $4,774.06
    Now: $3,689.05
    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...
    MSRP: $4,774.06
    Now: $3,689.05
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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...
    MSRP: $3,246.34
    Now: $2,459.35
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    Carrier 0843P-0587 Outdoor Tem/Humidity Sensor

    Carrier

    MSRP: $3,566.82
    Now: $2,756.18
    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: $3,566.82
    Now: $2,756.18
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    Honeywell LP914A1011 -40/160F,15"Avg.Temp. Sensor

    Honeywell

    MSRP: $3,403.36
    Now: $2,629.87
    Honeywell LP914A1011 -40/160F,15"Avg.Temp. Sensorl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $3,403.36
    Now: $2,629.87
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    Honeywell C7061A1053 1"120V Uv Flm Snsr, Self-Ch,96"

    Honeywell

    MSRP: $3,376.86
    Now: $2,609.39
    Honeywell C7061A1053 1"120V Uv Flm Snsr, Self-Ch,96"l  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $3,376.86
    Now: $2,609.39
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    Honeywell C7061A1046 (replacement for C7061A1038) 1"120V Uv Flame Sensor,Self-Ch

    Honeywell

    MSRP: $3,422.41
    Now: $2,644.59
    Honeywell C7061A1046 1"120V Uv Flame Sensor,Self-Chl This REPLACES C7061A1038  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts -...
    MSRP: $3,422.41
    Now: $2,644.59
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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.