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Siemens
Siemens QFM3101 : Duct Humidity Sensor, 2% rH Accuracy, 4-20mA Output, 5-Year Warranty
MSRP: $570.08$216.63 -
Siemens
Siemens QFM3160D : Duct Humidity/Temperature Combo Sensor, 2% rH Accuracy, 0-10VDC Output, LCD Display, 5-Year Warranty
MSRP: $797.34$302.99 -
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Humidity
Humidity sensors are devices that are used to measure the humidity, or amount of moisture, in the air. Facilitating compliance with ASHRAE 62.1 standard for air quality, these sensors work by measuring the temperature and humidity of the air and using this information to calculate the dew point, or the temperature at which water vapor condenses from the air.