HVAC Sensors

USED RETURN: This is an open-box item returned by a customer within our 30-day refund period. Box may be missing or open but item is like new. Item has been inspected and/or tested and is in excellent working condition. Eligible for our 30-day return...

Manufacturer Part Number: QAA2212.FWSN Siemens QAA2212.FWSN is a room sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug connections at both ends for...

Manufacturer Part Number: QPA2282.EWSC Siemens QPA2282.EWSC is a room temperature and CO2 sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug connections...

Manufacturer Part Number: QPA2284.EWSC Siemens QPA2284.EWSC is a room temperature, humidity, and CO2 sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug...

Manufacturer Part Number: QFA3280.EWSC Siemens QFA3280.EWSC is a room temperature and humidity sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug...

Manufacturer Part Number: QAA2232.FWSN Siemens QAA2230.FWSN is a room temperature sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug connections at both...

Manufacturer Part Number: QAA2230.FWSN Siemens QAA2230.FWSN is a room temperature sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug connections at both...

Manufacturer Part Number: QAA2220.EWSN Siemens QAA2220.EWSN is a room temperature sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug connections at both...

Manufacturer Part Number: QFA3280.DWSC Siemens QFA3280.DWSC is a room temperature and humidity sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug...

Manufacturer Part Number: QFA3212.FWSN Siemens QFA3212.FWSN is a room sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug connections at both ends for...

Manufacturer Part Number: QFA3230.FWSN Siemens QFA3230.FWSN is a room sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug connections at both ends for...

Manufacturer Part Number: QFA32SS.FWSN Siemens QFA32SS.FWSN is a room sensor designed for use with Siemens Terminal Equipment Controllers (TECs). This sensor communicates with the controller using an RJ-11 cable with plug connections at both ends for...