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Sensors

Sensors

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    Siemens 544-578 Temp Sensor O/Air -40/240F

    Siemens Building Technology

    MSRP: $63.44
    Now: $49.02
    Siemens 544-578 Temp Sensor O/Air -40/240F  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $63.44
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    Siemens 544-577-40 -40/240F Immersion Avg Sensor

    Siemens Building Technology

    MSRP: $123.96
    Now: $95.79
    Siemens 544-577-40 -40/240F Immersion Avg Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $123.96
    Now: $95.79
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    Siemens 544-577-25 Imm Sensor -40/240 1000Ohm Plat

    Siemens Building Technology

    MSRP: $118.55
    Now: $91.61
    Siemens 544-577-25 Imm Sensor -40/240 1000Ohm Plat  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $118.55
    Now: $91.61
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    Siemens 544-562-40 4" 32/212F Immersion Sensor

    Siemens

    MSRP: $139.67
    Now: $105.81
    Siemens 544-562-40 4" 32/212F Immersion Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $139.67
    Now: $105.81
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    Siemens 544-483A Temp Sensor Repair Kit

    Siemens

    MSRP: $58.00
    Now: $43.94
    Siemens 544-483A Temp Sensor Repair Kit  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $58.00
    Now: $43.94
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    Siemens 544-343-24 D/Av Sensor, 24"Prb, Rtd, 20-120F

    Siemens Building Technology

    MSRP: $130.28
    Now: $100.67
    Siemens 544-343-24 D/Av Sensor, 24"Prb, Rtd, 20-120F  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $130.28
    Now: $100.67
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    Siemens 544-339-18 D/Pt Temp. Sensor, Rtd, -40/240F

    Siemens Building Technology

    MSRP: $61.74
    Now: $47.71
    Siemens 544-339-18 D/Pt Temp. Sensor, Rtd, -40/240F  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $61.74
    Now: $47.71
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    Siemens 544-089 Surface Mount Pipe Sensor

    Siemens

    MSRP: $59.32
    Now: $44.94
    Siemens 544-089 Surface Mount Pipe Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $59.32
    Now: $44.94
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    Siemens 540-680CB White Temp Sen W/Set Pt & O/R Cel

    Siemens Building Technology

    MSRP: $247.48
    Now: $187.49
    Siemens 540-680CB White Temp Sen W/Set Pt & O/R Cel  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $247.48
    Now: $187.49
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    Siemens 540-680CA Beige Temp Sen W/Set Pt & O/R Cel

    Siemens

    MSRP: $708.71
    Now: $536.90
    Siemens 540-680CA Beige Temp Sen W/Set Pt & O/R Cel  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $708.71
    Now: $536.90
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    Siemens 540-670B Tec Room Sensor, W/Stpt, Ovride

    Siemens Building Technology

    MSRP: $628.32
    Now: $485.52
    Siemens 540-670B Tec Room Sensor, W/Stpt, Ovride   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $628.32
    Now: $485.52
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    Siemens 540-670A Beige Rm Temp Sensor W/Set Pt & O/R

    Siemens Building Technology

    MSRP: $628.32
    Now: $485.52
    Siemens 540-670A Beige Rm Temp Sensor W/Set Pt & O/R  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $628.32
    Now: $485.52
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    Siemens 540-660A Room Sensor, Beige, Tec

    Siemens Building Technology

    MSRP: $352.13
    Now: $272.10
    Siemens 540-660A Room Sensor, Beige, Tec   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $352.13
    Now: $272.10
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    Siemens 540-520A Room Temp Sensor Flush Mount

    Siemens

    MSRP: $110.24
    Now: $83.51
    Siemens 540-520A Room Temp Sensor Flush Mount  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $110.24
    Now: $83.51
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    Siemens 540-246-72 6'Flex Avg Sensor Ntc 100K Ohm Type2

    Siemens

    MSRP: $98.60
    Now: $74.70
    Siemens 540-246-72 6'Flex Avg Sensor Ntc 100K Ohm Type2  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $98.60
    Now: $74.70
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    Siemens 540-245-36 Flex Avg Sens Ntc 100K Ohm 36"P

    Siemens

    MSRP: $97.07
    Now: $73.54
    Siemens 540-245-36 Flex Avg Sens Ntc 100K Ohm 36"P  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $97.07
    Now: $73.54
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    Siemens 540-244-18 Rigid Avg Temp Sens 18"

    Siemens Building Technology

    MSRP: $94.23
    Now: $72.82
    Siemens 540-244-18 Rigid Avg Temp Sens 18"  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $94.23
    Now: $72.82
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    Siemens 536-811 100K Ohm Duct Temp Sensor

    Siemens Building Technology

    MSRP: $23.88
    Now: $18.45
    Siemens 536-811 100K Ohm Duct Temp Sensor   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $23.88
    Now: $18.45
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    Siemens 536-777-25 Imm Sensor 100Kohm Therm

    Siemens

    MSRP: $96.69
    Now: $73.25
    Siemens 536-777-25 Imm Sensor 100Kohm Therm  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $96.69
    Now: $73.25
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    Siemens 536-774-25 2.5" Imm Sensor, 20-70F

    Siemens Building Technology

    MSRP: $163.38
    Now: $126.25
    Siemens 536-774-25 2.5" Imm Sensor, 20-70F  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $163.38
    Now: $126.25
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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.