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Collection: By Manufacturer: Siemens

Siemens Building Technologies offers integrated, data-driven automation systems specializing in HVAC, lighting, and security. Together, the focus is to optimize energy efficiency, safety, and occupant experience in commercial and public buildings worldwide. Shop all of the Siemens products that we offer.

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Siemens GCA126.1U Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run, 2-Aux

Siemens GCA126.1U Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run, 2-Aux

Regular price $367.66 USD

Regular price Sale price $367.66 USD
Siemens GCA126.1P Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run, 2-Aux, Plenum

Siemens GCA126.1P Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run, 2-Aux, Plenum

Regular price $371.61 USD

Regular price Sale price $371.61 USD
Siemens GCA121.1U/B Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run, Bulk 8

Siemens GCA121.1U/B Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run, Bulk 8

Regular price $2,265.87 USD

Regular price Sale price $2,265.87 USD
Siemens GCA121.1U Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run

Siemens GCA121.1U Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run

Regular price $312.55 USD

Regular price Sale price $312.55 USD
Siemens GCA121.1P Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run, Plenum

Siemens GCA121.1P Spring Return, 160 lb-in (18 Nm), 24 Vac/dc, 2-position Control, 90 sec Run, Plenum

Regular price $322.75 USD

Regular price Sale price $322.75 USD
Siemens QAC3171, Outside Air Temperature Sensor, 4-20mA, -58-122F, Plastic

Siemens QAC3171, Outside Air Temperature Sensor, 4-20mA, -58-122F, Plastic

Regular price $113.21 USD

Regular price Sale price $113.21 USD
Siemens QAC3161, Outside Air Temperature Sensor, 0-10V, -58-122F, Plastic

Siemens QAC3161, Outside Air Temperature Sensor, 0-10V, -58-122F, Plastic

Regular price $113.21 USD

Regular price Sale price $113.21 USD
Siemens QAC22, Outside Temperature Sensor, -22 to 122 degrees Fahrenheit

Siemens QAC22, Outside Temperature Sensor, -22 to 122 degrees Fahrenheit

Regular price $36.06 USD

Regular price Sale price $36.06 USD
Siemens QAC2032U, Outside Air Temperature Sensor, 10K Ohm Type 3

Siemens QAC2032U, Outside Air Temperature Sensor, 10K Ohm Type 3

Regular price $55.84 USD

Regular price Sale price $55.84 USD
Siemens QAC2030U, Outside Air Temperature Sensor, 10K Ohm, Type 2

Siemens QAC2030U, Outside Air Temperature Sensor, 10K Ohm, Type 2

Regular price $52.02 USD

Regular price Sale price $52.02 USD
Siemens QAC2030, Outside Air Temperature Sensor, 10k Ohm, Type 2

Siemens QAC2030, Outside Air Temperature Sensor, 10k Ohm, Type 2

Regular price $23.34 USD

Regular price Sale price $23.34 USD
Siemens QAC2021U, Outside Air Temperature Sensor, 1K Ohm, Nickel

Siemens QAC2021U, Outside Air Temperature Sensor, 1K Ohm, Nickel

Regular price $95.58 USD

Regular price Sale price $95.58 USD
Siemens QAC2020U, Outside Air Temperature Sensor, 1K Ohm, Nickel

Siemens QAC2020U, Outside Air Temperature Sensor, 1K Ohm, Nickel

Regular price $67.78 USD

Regular price Sale price $67.78 USD
Siemens QAC2012U, Outside Air Temperature Sensor, 1K Ohm Platinum (385 alpha)

Siemens QAC2012U, Outside Air Temperature Sensor, 1K Ohm Platinum (385 alpha)

Regular price $57.65 USD

Regular price Sale price $57.65 USD
Siemens QAC2012, Outside Air Temperature Sensor, 1K Ohm Platinum (385 alpha)

Siemens QAC2012, Outside Air Temperature Sensor, 1K Ohm Platinum (385 alpha)

Regular price $28.65 USD

Regular price Sale price $28.65 USD
Siemens QFA3280.FWSC, Siemens QFA3280.FWSC Room Temp Sensor, RH 2%, for TEC, Digital signal, Sense & with Display, Override, Temp Setpoint, Tool Port.

Siemens QFA3280.FWSC, Siemens QFA3280.FWSC Room Temp Sensor, RH 2%, for TEC, Digital signal, Sense & with Display, Override, Temp Setpoint, Tool Port.

Regular price $270.48 USD

Regular price Sale price $270.48 USD
Siemens QFA3280.FWNC, Siemens QFA3280.FWNC Room Temp Sensor, RH 2%, for TEC, Digital signal, Sense & with Display, Override, Temp Setpoint, No Logo, Tool Port.

Siemens QFA3280.FWNC, Siemens QFA3280.FWNC Room Temp Sensor, RH 2%, for TEC, Digital signal, Sense & with Display, Override, Temp Setpoint, No Logo, Tool Port.

Regular price $326.66 USD

Regular price Sale price $326.66 USD
Siemens QFA3280.EWSC, Siemens QFA3280.EWSC Room Temp Sensor, RH 2%, for TEC, Digital signal, Temp Sensing, Tool Port.

Siemens QFA3280.EWSC, Siemens QFA3280.EWSC Room Temp Sensor, RH 2%, for TEC, Digital signal, Temp Sensing, Tool Port.

Regular price $154.56 USD

Regular price Sale price $154.56 USD
Siemens QFA3280.EWNC, Siemens QFA3280.EWNC Room Temp Sensor, RH 2%, for TEC, Digital signal, Temp Sensing, No Logo, Tool Port.

Siemens QFA3280.EWNC, Siemens QFA3280.EWNC Room Temp Sensor, RH 2%, for TEC, Digital signal, Temp Sensing, No Logo, Tool Port.

Regular price $154.56 USD

Regular price Sale price $154.56 USD
Siemens QFA3280.DWSC, Siemens QFA3280.DWSC Room Temp Sensor, RH 2%, for TEC, Digital signal, Sense & with Display, Tool Port.

Siemens QFA3280.DWSC, Siemens QFA3280.DWSC Room Temp Sensor, RH 2%, for TEC, Digital signal, Sense & with Display, Tool Port.

Regular price $261.34 USD

Regular price Sale price $261.34 USD
Siemens QPA2284.FWSC, Siemens QPA2284.FWSC Room CO2, Humidity and Temperature Sensor, Full Feature, Siemens Logo, Tool Port, For Siemens TEC Controllers

Siemens QPA2284.FWSC, Siemens QPA2284.FWSC Room CO2, Humidity and Temperature Sensor, Full Feature, Siemens Logo, Tool Port, For Siemens TEC Controllers

Regular price $662.30 USD

Regular price Sale price $662.30 USD
Siemens QPA2284.FWNC, Siemens QPA2284.FWNC Room CO2, Humidity and Temperature Sensor, Full Feature, No Logo, Tool Port, For Siemens TEC Controllers

Siemens QPA2284.FWNC, Siemens QPA2284.FWNC Room CO2, Humidity and Temperature Sensor, Full Feature, No Logo, Tool Port, For Siemens TEC Controllers

Regular price $662.30 USD

Regular price Sale price $662.30 USD
Siemens QPA2282.EWSC, Siemens QPA2282.EWSC Room CO2, Temperature Sensor, No HMI, Siemens Logo, Tool Port, For Siemens TEC Controllers

Siemens QPA2282.EWSC, Siemens QPA2282.EWSC Room CO2, Temperature Sensor, No HMI, Siemens Logo, Tool Port, For Siemens TEC Controllers

Regular price $454.16 USD

Regular price Sale price $454.16 USD
Siemens QAD22 Strap On Temperature Sensor

Siemens QAD22 Strap On Temperature Sensor

Regular price $43.44 USD

Regular price Sale price $43.44 USD
Siemens QAD2032U Strap On Temperature Sensor

Siemens QAD2032U Strap On Temperature Sensor

Regular price $48.30 USD

Regular price Sale price $48.30 USD
Siemens QAD2030U Strap On Temperature Sensor

Siemens QAD2030U Strap On Temperature Sensor

Regular price $59.29 USD

Regular price Sale price $59.29 USD
Siemens QAD2030 Strap On Temperature Sensor

Siemens QAD2030 Strap On Temperature Sensor

Regular price $32.32 USD

Regular price Sale price $32.32 USD
Siemens QAD2020U Strap On Temperature Sensor

Siemens QAD2020U Strap On Temperature Sensor

Regular price $92.14 USD

Regular price Sale price $92.14 USD
Siemens QAD2012U Strap On Temperature Sensor

Siemens QAD2012U Strap On Temperature Sensor

Regular price $73.55 USD

Regular price Sale price $73.55 USD
Siemens QAD2012 Strap On Temperature Sensor

Siemens QAD2012 Strap On Temperature Sensor

Regular price $36.18 USD

Regular price Sale price $36.18 USD

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