Sensors Siemens Building Technology

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 Siemens Building Technology 540-520B Room Temperature Sensor, Flush Mount, 10 K ohm, 55-95 Deg F, White | Midwest Supply Us
540-520B | Room Temperature Sensor, Flush Mount, 10 K ohm, 55-95 Deg F, White | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-520B
$97.83 each
View Details Siemens Building Technology QAA2280.FWNC Room Temp Sensor, Full Feature, No Logo, Tool Port, Siemens TEC Controllers | Midwest Supply Us
QAA2280.FWNC | Room Temp Sensor, Full Feature, No Logo, Tool Port, Siemens TEC Controllers | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAA2280.FWNC
$194.04 each
View Details Siemens Building Technology 540-670B Room Temperature Sensor with Setpoint and Occupancy Override, White | Midwest Supply Us
540-670B | Room Temperature Sensor with Setpoint and Occupancy Override, White | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-670B
$495.04 each
View Details Siemens Building Technology QFA3171 Outside Air RH and Temp Sensor, 2 percent, RH: 4-20 4 to 20 Ma T: 4-20 mA | Midwest Supply Us
QFA3171 | Outside Air RH and Temp Sensor, 2 percent, RH: 4-20 4 to 20 Ma T: 4-20 mA | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA3171
$317.17 each
View Details Siemens Building Technology QFA3280.FWSC Room Temp Sensor, RH 2%, TEC, Digital signal, Sense & Display | Midwest Supply Us
QFA3280.FWSC | Room Temp Sensor, RH 2%, TEC, Digital signal, Sense & Display | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA3280.FWSC
$277.19 each
View Details Siemens Building Technology QAA22SS.EWSN Room Temp Sensor, 0-10V / 0-5V / 4-20 mA (selectable), No HMI, Siemens Logo | Midwest Supply Us
QAA22SS.EWSN | Room Temp Sensor, 0-10V / 0-5V / 4-20 mA (selectable), No HMI, Siemens Logo | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAA22SS.EWSN
$116.58 each
View Details Siemens Building Technology 540-660A Room Temperature Sensor, Beige | Midwest Supply Us
540-660A | Room Temperature Sensor, Beige | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-660A
$277.44 each
View Details Siemens Building Technology QFM2171 Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA | Midwest Supply Us
QFM2171 | Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFM2171
$208.68 each
View Details Siemens Building Technology QFA3100 Outside Air Relative Humidity Sensor, 2 percent accuracy, 0-10 Vdc | Midwest Supply Us
QFA3100 | Outside Air Relative Humidity Sensor, 2 percent accuracy, 0-10 Vdc | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA3100
$260.29 each
View Details Siemens Building Technology QPA2060D Room Sensor CO2 and Temperature with Display, 0 to 10V | Midwest Supply Us
QPA2060D | Room Sensor CO2 and Temperature with Display, 0 to 10V | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QPA2060D
$527.00 each
View Details Siemens Building Technology QPA2062 Room Sensor CO2 + Temperature + Relative Humidity, 0 to 10V | Midwest Supply Us
QPA2062 | Room Sensor CO2 + Temperature + Relative Humidity, 0 to 10V | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QPA2062
$641.59 each
View Details Siemens Building Technology QFA32SS.FWNN Room Humidity + Temperature Sensor, Full Feature, No Logo | Midwest Supply Us
QFA32SS.FWNN | Room Humidity + Temperature Sensor, Full Feature, No Logo | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA32SS.FWNN
$276.58 each
View Details Siemens Building Technology QFA2001 ROOM RH SENSOR, 4-20MA, 2 WIRE, 5% | Midwest Supply Us
QFA2001 | ROOM RH SENSOR, 4-20MA, 2 WIRE, 5% | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QFA2001
$204.82 each
View Details Siemens Building Technology QAM2012.020 Duct Point Temperature Sensor, 1K Ohm Platinum, (385 Alpha), 8-Inch | Midwest Supply Us
QAM2012.020 | Duct Point Temperature Sensor, 1K Ohm Platinum, (385 Alpha), 8-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAM2012.020
$44.18 each
View Details Siemens Building Technology QAM2021.750 Duct Point Temperature sensor, 1K Ohm Nickel at 70 Deg F, 24-Foot | Midwest Supply Us
QAM2021.750 | Duct Point Temperature sensor, 1K Ohm Nickel at 70 Deg F, 24-Foot | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAM2021.750
View Details
View Details Siemens Building Technology QAE2012.005 Immersion Well Temperature Sensor, 1K Ohm Platinum (385 Alpha), 2.5" Probe | Midwest Supply Us
QAE2012.005 | Immersion Well Temperature Sensor, 1K Ohm Platinum (385 Alpha), 2.5" Probe | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAE2012.005
$66.95 each
View Details Siemens Building Technology QAA22SS.EWNN Room Temperature Sensor, 0-10V / 0-5V / 4-20 mA (selectable), No HMI, No Logo | Midwest Supply Us
QAA22SS.EWNN | Room Temperature Sensor, 0-10V / 0-5V / 4-20 mA (selectable), No HMI, No Logo | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAA22SS.EWNN
$116.58 each
View Details Siemens Building Technology QAA2280.EWSC Room Temp Sensor, No HMI, Siemens Logo, Tool Port, Siemens TEC Controllers | Midwest Supply Us
QAA2280.EWSC | Room Temp Sensor, No HMI, Siemens Logo, Tool Port, Siemens TEC Controllers | Siemens Building Technology
Brand: Siemens Building Technology
SKU: QAA2280.EWSC
$75.22 each
View Details Siemens Building Technology 540-660B Room Temperature Sensor, White | Midwest Supply Us
540-660B | Room Temperature Sensor, White | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 540-660B
$277.44 each
View Details Siemens Building Technology 544-342-24 Flexible Averaging Duct Sensor, 1K Ohm Platinum, 24-Foot | Midwest Supply Us
544-342-24 | Flexible Averaging Duct Sensor, 1K Ohm Platinum, 24-Foot | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-342-24
$139.42 each
View Details Siemens Building Technology 544-339-8 Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 8-Inch | Midwest Supply Us
544-339-8 | Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 8-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-339-8
$56.47 each
View Details Siemens Building Technology 544-973 Flush Mount Room Temp Sensor, 1K Ohm Plat RTD (375 Alpha), White Metal Cover | Midwest Supply Us
544-973 | Flush Mount Room Temp Sensor, 1K Ohm Plat RTD (375 Alpha), White Metal Cover | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 544-973
$33.26 each
View Details Siemens Building Technology 587-184 Room Temperature Sensor, Setpoint Adjustment and Override, For Use With Siemens Talon Controllers | Midwest Supply Us
587-184 | Room Temperature Sensor, Setpoint Adjustment and Override, For Use With Siemens Talon Controllers | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 587-184
$214.47 each
View Details Siemens Building Technology 535-490-18 Rigid Averaging Duct Sensor, 20 to 120 Deg F, 18-Inch | Midwest Supply Us
535-490-18 | Rigid Averaging Duct Sensor, 20 to 120 Deg F, 18-Inch | Siemens Building Technology
Brand: Siemens Building Technology
SKU: 535-490-18
$109.96 each
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