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Siemens
Siemens QFM2171 : Duct Humidity/Temperature Combo Sensor, 5% rH Accuracy, 4-20mA Output, 5-Year Warranty
MSRP: $485.30$184.41 -
Siemens
Siemens QFM2160U : Duct Humidity/Temperature Combo Sensor, 5% rH Accuracy, 0-10VDC Output, 5-Year Warranty
MSRP: $485.30$184.41