thermistors
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![Johnson Controls A421ABC-02C Single Stage Temp Controller with Sensor, 120/240VAC, NEMA1, 6' 6" lead, -40 to 212F, HTG/CLG | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A421_6a441be9-7bb8-4fd1-961e-68e071b6033e_medium.jpg?v=1719992680)
A421ABC-02C | Single Stage Temp Controller with Sensor, 120 / 240VAC, NEMA1, 6' 6" lead, -40 to 212F, HTG / CLG | Johnson Controls
Brand: Johnson Controls
SKU: A421ABC-02C
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![Water Heater Parts 100276374 Door Switch AO Smith Hex Temperature Beginning Serial #F14 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/958535_523f4d0a-95ec-4c18-b9e4-e9f845f7fa1e_medium.jpg?v=1718920018)
100276374 | Door Switch AO Smith Hex Temperature Beginning Serial #F14 | Water Heater Parts
Brand: Water Heater Parts
SKU: 100276374
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![Johnson Controls A421AEC-02C Single Stage Temp Controller with Sensor, 120/240VAC, NEMA4X, 6' 7" lead, -40 to 212F, HTG/CLG | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A421_d140379e-0987-40a4-b6e7-8558bd7edc9a_medium.jpg?v=1719992676)
A421AEC-02C | Single Stage Temp Controller with Sensor, 120 / 240VAC, NEMA4X, 6' 7" lead, -40 to 212F, HTG / CLG | Johnson Controls
Brand: Johnson Controls
SKU: A421AEC-02C
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![KMC STE-8001W80 Digital Sensor: SimplyVAV, Temperature, White, | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/STE-8001_space_temp_only_medium.jpg?v=1716475174)
STE-8001W80 | Digital Sensor: SimplyVAV, Temperature, White, | KMC
Brand: KMC
SKU: STE-8001W80
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![Siemens QFA3171 Outside Air RH and Temp Sensor, 2 percent, RH: 4-20 4 to 20 Ma T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFA3171_80c357e0-a775-40db-8f7d-b1764347d1b4_medium.jpg?v=1714161931)
QFA3171 | Outside Air RH and Temp Sensor, 2 percent, RH: 4-20 4 to 20 Ma T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFA3171
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![ACI A/CP-R 10K ohm Type II | Room Zone Wall Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-r-rj6_f6c72d8d-25db-419e-b7b2-b495ad90788f_medium.png?v=1719982099)
A / CP-R | 10K ohm Type II | Room Zone Wall Temperature Sensor | ACI
Brand: ACI
SKU: A/CP-R
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![Johnson Controls A421GBF-02C Single Stage Temp Controller with Sensor, 24VAC, NEMA1, 6' 7" lead, -40 to 212F, HTG/CLG | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A421_d1efd7cb-c753-4ae9-94ee-0306348dbde2_medium.jpg?v=1719992671)
A421GBF-02C | Single Stage Temp Controller with Sensor, 24VAC, NEMA1, 6' 7" lead, -40 to 212F, HTG / CLG | Johnson Controls
Brand: Johnson Controls
SKU: A421GBF-02C
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![ACI A/CP-BP 10K ohm Type II | Bullet Probe Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-bp_0ad6e947-daa6-421d-ba74-76ef511ea4bb_medium.png?v=1719982007)
A / CP-BP | 10K ohm Type II | Bullet Probe Temperature Sensor | ACI
Brand: ACI
SKU: A/CP-BP
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![Siemens QFA3171D Outside Air RH & T Sensor, 2 percent, RH: 4-20 mA T: 4-20 mA, Display | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFA3171D_medium.jpg?v=1692723009)
QFA3171D | Outside Air RH & T Sensor, 2 percent, RH: 4-20 mA T: 4-20 mA, Display | Siemens
Brand: Siemens
SKU: QFA3171D
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![iO HVAC Controls UT-SWM Universal Thermostat Smart Wire Module - 2 to 5 Wire Adapter | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/UT-SWM_medium.jpg?v=1719992563)
UT-SWM | Universal Thermostat Smart Wire Module - 2 to 5 Wire Adapter | iO HVAC Controls
Brand: iO HVAC Controls
SKU: UT-SWM
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![ACI A/CP-PBS 10K ohm Type II | Plastic Button Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-pbs_e60297ad-0bb4-4130-b2b3-8cedf4d0ed00_medium.png?v=1719982064)
A / CP-PBS | 10K ohm Type II | Plastic Button Temperature Sensor | ACI
Brand: ACI
SKU: A/CP-PBS
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![Johnson Controls NSB8BTN140-0 Temp | Warmer/Cooler | White | JCI Branded | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/NSB8BTN140-0_medium.png?v=1719993303)
NSB8BTN140-0 | Temp | Warmer / Cooler | White | JCI Branded | Johnson Controls
Brand: Johnson Controls
SKU: NSB8BTN140-0
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![Siemens 544-643A Pass Key | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/A6V10986226_en_medium.jpg?v=1694541344)
544-643A | Pass Key | Siemens
Brand: Siemens
SKU: 544-643A
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![Veris AG01 Gas Platform Sensor | Carbon Monoxide | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/AG01_medium.jpg?v=1708621546)
AG01 | Gas Platform Sensor | Carbon Monoxide | Veris
Brand: Veris
SKU: AG01
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![Neptronic TFC24F3XYZ3 Stand alone Fan Coil Wall Mount Controller (Schedular) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/TFCTFH_28da86f0-b42c-4bfb-a07b-f20de4717c69_medium.png?v=1718908968)
TFC24F3XYZ3 | Stand alone Fan Coil Wall Mount Controller (Schedular) | Neptronic
Brand: Neptronic
SKU: TFC24F3XYZ3
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![Johnson Controls A99BB-600C PTC SILICON SENSOR; WITH PVC CABLE LENGTH 19 1/2 FT (6 M) SENSOR RANGE -40 TO 212 DEGREES F | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/jci-a99bb-600c-ptc-silicon-sensor-with-pvc-cable-length-19-1-2-ft-6-m-sensor-range-40-to-212-degrees-f_139ba45a-7d22-4974-9027-03c6a43f0c0a_medium.jpg?v=1719992699)
A99BB-600C | PTC SILICON SENSOR; WITH PVC CABLE LENGTH 19 1 / 2 FT (6 M) SENSOR RANGE -40 TO 212 DEGREES F | Johnson Controls
Brand: Johnson Controls
SKU: A99BB-600C
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![ACI A/AN-PBS 10K ohm Type III | Plastic Button Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-pbs_52fad9f3-7b36-4ff6-bb17-98958e2a2128_medium.png?v=1719981871)
A / AN-PBS | 10K ohm Type III | Plastic Button Temperature Sensor | ACI
Brand: ACI
SKU: A/AN-PBS
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![Siemens QAA2280.EWSC Room Temp Sensor, No HMI, Siemens Logo, Tool Port, Siemens TEC Controllers | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAA2280.EWSC_medium.jpg?v=1710958316)
QAA2280.EWSC | Room Temp Sensor, No HMI, Siemens Logo, Tool Port, Siemens TEC Controllers | Siemens
Brand: Siemens
SKU: QAA2280.EWSC
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