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Almost every heating, ventilation, air-conditioning, and refrigeration system uses sensors. Choose the world's top sensor brands to optimize system performance, and ensure occupant health, safety, comfort, and productivity.

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HVAC Humidity Sensor for Sale
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View Details Johnson Controls A99BB-300C PTC SILICON SENSOR; WITH PVC CABLE LENGTH 9 3/4 FT (3 M) SENSOR RANGE -40 TO 212 DEGREES F | Midwest Supply Us
A99BB-300C | PTC SILICON SENSOR; WITH PVC CABLE LENGTH 9 3/4 FT (3 M) SENSOR RANGE -40 TO 212 DEGREES F | Johnson Controls
Brand: Johnson Controls
SKU: A99BB-300C
$51.66 each
View Details JOHNSON TE-6100-961 SENSOR; ROOM VERT MT.; NO SET POINT; ORDER COVER SEPARATELY; (F/DSC) | Midwest Supply Us
TE-6100-961 | SENSOR; ROOM VERT MT.; NO SET POINT; ORDER COVER SEPARATELY; (F/DSC) | JOHNSON
Brand: JOHNSON
SKU: TE-6100-961
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View Details JOHNSON HE-69135NS-0 SURFACEMNTDUCT;0-5V;3%RH; SURFACE MNT DUCT SENSOR;0-5V RH OUTPUT; +/-3%RH; 1KOHM NICKEL RTD | Midwest Supply Us
HE-69135NS-0 | SURFACEMNTDUCT;0-5V;3%RH; SURFACE MNT DUCT SENSOR;0-5V RH OUTPUT; +/-3%RH; 1KOHM NICKEL RTD | JOHNSON
Brand: JOHNSON
SKU: HE-69135NS-0
$188.31 each
View Details JOHNSON A421AED-01C Single Stage Temp Controller with Sensor, Off-Cycle Defrost Timer, 120/240VAC, NEMA4X, 9" lead, -40 to 212F, HTG/CLG | Midwest Supply Us
A421AED-01C | Single Stage Temp Controller with Sensor, Off-Cycle Defrost Timer, 120/240VAC, NEMA4X, 9" lead, -40 to 212F, HTG/CLG | JOHNSON
Brand: JOHNSON
SKU: A421AED-01C
View Details
View Details Johnson Controls NS-BTV7002-0 BAL SENS.WALL BOX MT.TB; BALANCING SENSOR. WALL BOX MOUNT. TERMINAL BLOCK NETWORK CONNECTION | Midwest Supply Us
NS-BTV7002-0 | BAL SENS.WALL BOX MT.TB; BALANCING SENSOR. WALL BOX MOUNT. TERMINAL BLOCK NETWORK CONNECTION | Johnson Controls
Brand: Johnson Controls
SKU: NS-BTV7002-0
View Details
View Details Johnson Controls TE-631GV-2 DUCT PROBE TEMP. SEN. 1K; DUCT PROBE TEMP SENSOR 1K NICKEL SENSOR 4IN PROBE | Midwest Supply Us
TE-631GV-2 | DUCT PROBE TEMP. SEN. 1K; DUCT PROBE TEMP SENSOR 1K NICKEL SENSOR 4IN PROBE | Johnson Controls
Brand: Johnson Controls
SKU: TE-631GV-2
$29.09 each
View Details Johnson Controls A421ABC-04C Single Stage Temp Controller with Sensor, 120/240VAC, NEMA1, 13' 1" lead, -40 to 212F, HTG/CLG | Midwest Supply Us
A421ABC-04C | Single Stage Temp Controller with Sensor, 120/240VAC, NEMA1, 13' 1" lead, -40 to 212F, HTG/CLG | Johnson Controls
Brand: Johnson Controls
SKU: A421ABC-04C
$125.34 each
View Details Johnson Controls A99BC-25C PTC SILICON SENSOR; WITH HIGH TEMPERATURE SILICON CABLE LEGNTH 9 3/4 IN (0.25 M) | Midwest Supply Us
A99BC-25C | PTC SILICON SENSOR; WITH HIGH TEMPERATURE SILICON CABLE LEGNTH 9 3/4 IN (0.25 M) | Johnson Controls
Brand: Johnson Controls
SKU: A99BC-25C
$46.49 each
View Details Johnson Controls A421AEC-02C Single Stage Temp Controller with Sensor, 120/240VAC, NEMA4X, 6' 7" lead, -40 to 212F, HTG/CLG | Midwest Supply Us
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
$177.20 each
View Details Johnson Controls TE-6314P-1 TEMP SENSOR; 1000 OHM; NI; FOR WALL MTG. | Midwest Supply Us
TE-6314P-1 | TEMP SENSOR; 1000 OHM; NI; FOR WALL MTG. | Johnson Controls
Brand: Johnson Controls
SKU: TE-6314P-1
$23.43 each
View Details Johnson Controls TE-6311M-1 DUCT PROBE SENSOR 8 INCH; 1000 OHM NICKEL - METAL ENCLOSURE | Midwest Supply Us
TE-6311M-1 | DUCT PROBE SENSOR 8 INCH; 1000 OHM NICKEL - METAL ENCLOSURE | Johnson Controls
Brand: Johnson Controls
SKU: TE-6311M-1
$27.75 each
View Details Johnson Controls A421ABD-02C Single Stage Temp Controller with Sensor, Off-Cycle Defrost Timer, 120/240VAC, NEMA1, 6' 7" lead, -40 to 212F, HTG/CLG | Midwest Supply Us
A421ABD-02C | Single Stage Temp Controller with Sensor, Off-Cycle Defrost Timer, 120/240VAC, NEMA1, 6' 7" lead, -40 to 212F, HTG/CLG | Johnson Controls
Brand: Johnson Controls
SKU: A421ABD-02C
$136.14 each
View Details Johnson Controls A421AEC-01C Single Stage Temp Controller with Sensor, 120/240VAC, NEMA4X, 9" lead, -40 to 212F, HTG/CLG | Midwest Supply Us
A421AEC-01C | Single Stage Temp Controller with Sensor, 120/240VAC, NEMA4X, 9" lead, -40 to 212F, HTG/CLG | Johnson Controls
Brand: Johnson Controls
SKU: A421AEC-01C
$173.60 each
View Details Johnson Controls A421AEJ-02C Single Stage Temp Controller with Sensor & Piggyback Power Cord, 120VAC, NEMA4X, 6' 6" lead, -40 to 212F, HTG/CLG | Midwest Supply Us
A421AEJ-02C | Single Stage Temp Controller with Sensor & Piggyback Power Cord, 120VAC, NEMA4X, 6' 6" lead, -40 to 212F, HTG/CLG | Johnson Controls
Brand: Johnson Controls
SKU: A421AEJ-02C
$212.50 each
View Details Johnson Controls TE-631S-1 TEMPERATURE SENSOR; STRAP ON TEMP SENSOR 1K NICKEL SENOSR 3"PROBE ROHS | Midwest Supply Us
TE-631S-1 | TEMPERATURE SENSOR; STRAP ON TEMP SENSOR 1K NICKEL SENOSR 3"PROBE ROHS | Johnson Controls
Brand: Johnson Controls
SKU: TE-631S-1
View Details
View Details Johnson Controls TE-6327P-1 TEMP. SENSOR;1000 OHM; PT; 10'; W/TE-6001-8 ELEMENTHOLDER | Midwest Supply Us
TE-6327P-1 | TEMP. SENSOR;1000 OHM; PT; 10'; W/TE-6001-8 ELEMENTHOLDER | Johnson Controls
Brand: Johnson Controls
SKU: TE-6327P-1
$309.68 each
View Details Johnson Controls TE-6328P-1 TEMP. SENSOR;1000 OHM; PT; 20'; W/TE-6001-8 ELEMENTHOLDER | Midwest Supply Us
TE-6328P-1 | TEMP. SENSOR;1000 OHM; PT; 20'; W/TE-6001-8 ELEMENTHOLDER | Johnson Controls
Brand: Johnson Controls
SKU: TE-6328P-1
View Details
View Details Johnson Controls TE-67NP-0N00 TEMP SENSOR 1K NICKEL; 1K NICKEL SENSOR PHONE JACK WHITE | Midwest Supply Us
TE-67NP-0N00 | TEMP SENSOR 1K NICKEL; 1K NICKEL SENSOR PHONE JACK WHITE | Johnson Controls
Brand: Johnson Controls
SKU: TE-67NP-0N00
View Details
View Details Johnson Controls TE-68NT-0N00S WALL TEMP SENSOR 1K NI; WALL MOUNT TEMPERATURE SENSOR;1K OHM NICKEL | Midwest Supply Us
TE-68NT-0N00S | WALL TEMP SENSOR 1K NI; WALL MOUNT TEMPERATURE SENSOR;1K OHM NICKEL | Johnson Controls
Brand: Johnson Controls
SKU: TE-68NT-0N00S
View Details
View Details Johnson Controls TE-68NT-1N00S WMR/CLR TEMP SEN 1K NI WL; WALL MOUNT TEMPERATURE SENSOR;1K OHM NICKEL WARMER/COOLER | Midwest Supply Us
TE-68NT-1N00S | WMR/CLR TEMP SEN 1K NI WL; WALL MOUNT TEMPERATURE SENSOR;1K OHM NICKEL WARMER/COOLER | Johnson Controls
Brand: Johnson Controls
SKU: TE-68NT-1N00S
View Details
View Details Johnson Controls SEN-600-4 RMOTE INDOOR SENSOR; W/OCCUPANCY OVERRIDE | Midwest Supply Us
SEN-600-4 | RMOTE INDOOR SENSOR; W/OCCUPANCY OVERRIDE | Johnson Controls
Brand: Johnson Controls
SKU: SEN-600-4
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View Details Johnson Controls TE-6351V-2 FLANGE MNT 8" PLATINUM PR; DUCT PROBE TEMPERATURE SENSOR; 1K PLATINUM SENSOR 8 IN. PROBE | Midwest Supply Us
TE-6351V-2 | FLANGE MNT 8" PLATINUM PR; DUCT PROBE TEMPERATURE SENSOR; 1K PLATINUM SENSOR 8 IN. PROBE | Johnson Controls
Brand: Johnson Controls
SKU: TE-6351V-2
$38.73 each
View Details Johnson Controls TE-6361V-2 TE-6361V-2 10K; DUCT PROBE TEMP SENSOR 10K THERMISTOR SENSOR 8IN PROBE | Midwest Supply Us
TE-6361V-2 | TE-6361V-2 10K; DUCT PROBE TEMP SENSOR 10K THERMISTOR SENSOR 8IN PROBE | Johnson Controls
Brand: Johnson Controls
SKU: TE-6361V-2
$43.51 each
View Details Johnson Controls TE-6374-1 TEMPERATURE SENSOR; TEMPERATURE SENSOR DESIGNED FOR DIRECT SHEET METAL MOUNTING | Midwest Supply Us
TE-6374-1 | TEMPERATURE SENSOR; TEMPERATURE SENSOR DESIGNED FOR DIRECT SHEET METAL MOUNTING | Johnson Controls
Brand: Johnson Controls
SKU: TE-6374-1
$74.59 each
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Brand: Norgas Controls
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