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Furnace Sensors & Replacement Sensors

Furnace Sensors & Replacement Sensors

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    Lennox 49M84 Flame Sensor

    Lennox

    MSRP: $23.94
    Now: $18.50
    Lennox 49M84  Flame Sensor   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $23.94
    Now: $18.50
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    Lennox 49K08 Temperature Sensor,12" Probe

    Lennox

    MSRP: $12.75
    Now: $9.86
    Lennox 49K08  Temperature Sensor,12" Probe   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $12.75
    Now: $9.86
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    Lennox 48G63 SUPPLY Air Sensor

    Lennox

    MSRP: $90.82
    Now: $70.18
    SUPPLY Air Sensor  FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $90.82
    Now: $70.18
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    Lennox 47W36 Averaging Space Sensor

    Lennox

    MSRP: $109.40
    Now: $84.53
    Averaging Space Sensor  FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $109.40
    Now: $84.53
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    Lennox 47K19 Defrost Sensor

    Lennox

    MSRP: $32.82
    Now: $25.36
    Defrost Sensor  FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $32.82
    Now: $25.36
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    Lennox 32M86 Flame Sensor

    Lennox

    MSRP: $5.71
    Now: $4.41
    Flame Sensor   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $5.71
    Now: $4.41
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    Lennox 28W70 Wire Harness W/Defrost Sensor

    Lennox

    MSRP: $113.02
    Now: $87.34
    Wire Harness W/Defrost Sensor   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $113.02
    Now: $87.34
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    Lennox 27J02 Flame Sensor

    Lennox

    MSRP: $34.29
    Now: $26.49
    Flame Sensor   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $34.29
    Now: $26.49
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    Lennox 26G10 Defrost Sensor L70-35F

    Lennox

    MSRP: $43.94
    Now: $33.95
    Lennox 26G10  Defrost Sensor L70-35F   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $43.94
    Now: $33.95
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    Lennox 21L99 Flame Sensor

    Lennox

    MSRP: $23.94
    Now: $18.50
    Lennox 21L99 Flame Sensor   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $23.94
    Now: $18.50
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    Lennox 17M50 Humidity Sensor

    Lennox

    MSRP: $432.43
    Now: $334.15
    Humidity Sensor   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $432.43
    Now: $334.15
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    MSRP: $432.43
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    Lennox 17J56 Flame Sensor

    Lennox

    MSRP: $22.80
    Now: $17.62
    Flame Sensor   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $22.80
    Now: $17.62
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    MSRP: $22.80
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    Lennox 14K92 OutdoorTemperature Sensor

    Lennox

    MSRP: $30.79
    Now: $23.79
    OutdoorTemperature Sensor  FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $30.79
    Now: $23.79
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    Lennox 14B53 Ambient Temperature Sensor

    Lennox

    MSRP: $74.68
    Now: $56.58
    Ambient Temperature Sensor  FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $74.68
    Now: $56.58
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    MSRP: $74.68
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    Lennox 13H27 Electrode/Sensor

    Lennox

    MSRP: $46.32
    Now: $35.79
    Electrode/Sensor  FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $46.32
    Now: $35.79
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    Lennox 11M65 Flame Sensor LEAD

    Lennox

    MSRP: $25.84
    Now: $19.97
    Flame Sensor LEAD   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $25.84
    Now: $19.97
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    Carrier TSTATXXSEN01B Outdoor Temperature Sensor

    Carrier

    MSRP: $41.63
    Now: $32.17
    Outdoor Temperature Sensor   FurnacePartSource.com Commitment Item Typically Ships within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $41.63
    Now: $32.17
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    Carrier SYSTXCCRRS01 Infinity Remote Room Temperature Sensor

    Carrier

    MSRP: $220.47
    Now: $170.37
    Carrier SYSTXCCRRS01  Infinity Remote Room Temperature 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: $220.47
    Now: $170.37
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    Carrier LH33WZ520 Flame Sensor

    Carrier

    MSRP: $22.47
    Now: $17.37
    Flame Sensor   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $22.47
    Now: $17.37
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    Carrier LH33WZ518 Flame Sensor

    Carrier

    MSRP: $27.54
    Now: $21.28
    Flame Sensor   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $27.54
    Now: $21.28
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Find high-quality furnace sensors designed to monitor temperature, airflow, and safety functions within your heating system. Our selection of furnace replacement sensors helps ensure accurate readings, efficient operation, and dependable system performance. Whether you’re servicing a residential or commercial unit, Furnace Part Source offers the furnace parts you need to keep heating systems running safely and efficiently.

Modern heating and air equipment could only function with a wide variety of sensors to provide it with a constant stream of information. Some furnace sensors are designed to check for a flame inside the heater. Others can calculate the outside temperature and adjust the amount of air moving through the ductwork accordingly. Technicians may even wish to install a particular HVAC sensor that can work with a high-grade braid or rope.

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Commercial Furnace Sensor Hardware

The most notable aspect of this market space is how newer HVAC sensors replace older models. Technicians must remove the existing module and swap their new HVAC sensors. Once the system is powered back up, it should function the same way as the original models did. For instance, those who used LN-VSTAT-1 devices should find that the newer LN-SVSEN-0 from Johnson Controls will serve as a drop-in replacement without needing significant refactoring work.

Likewise, operators of existing number 9004520215 flame sensors will note that the 100109908 model from Lochinvar and A.O. Smith will work just as well. In many situations, these replacements offer a considerable upgrade. Advances in materials engineering and machining tolerances have brought highly sophisticated manufacturing workflows with them. Progressive HVAC brands have kept pace with all of these and adopted each one that makes sense.

System Sensors

System sensor D4120 modules are another great example. These gas and smoke detectors can replace existing 70-600000-054 HVAC sensors and those with serial numbers that start with 70-600000-157. By combining a robust sensor circuit with advanced electronics, engineers have made using a single device in both potential use cases possible. 

HVAC installers and those who manage enterprise-scale systems may want to invest in a series of these if something goes wrong with their current stock. Professionals who work with full-scale heating and air conditioning solutions will also want to take a closer look at the variety of HVAC sensors made specifically for their market segment.

Industrial HVAC Sensor Equipment

Only some of the furnace sensors you'll find are commercial-grade modules. Honeywell Analytics offers a chlorine dioxide sensor that can detect airborne material down to about 1 part per million. This is sensitive enough to work in some of the most exact situations. 

Multiple units could be chained together to provide a degree of coverage over a much larger area. Rheem-Rudd AP19134 rope water sensors may also be helpful to those who find themselves managing a more substantial installation of any type.

Upgrade Your Safety Features With Furnace Part Source

Regardless of the type of furnace sensors you might need, you can find them at the Furnace Part Source. Our organization has representatives who scour catalogs and press releases from the top brands to find you the best options today.

Commercial, residential, and industrial inquiries are always welcome. Use our convenient online contact form to get more information about all the HVAC sensor modules on the market. Furnace Part Source makes cleaning a furnace flame sensor easy.