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083E Relative Humidity Sensor & 085 Relative Humidity : Temperature Sensor

Relative Humidity Sensor 083F & Relative Humidity / Temperature Sensor 085A

The 083F Relative Humidity Sensor is a highly sensitive and stable humidity measurement tool that provides outstanding accuracy. It is reliable in the full range of relative humidity conditions, from 0-100%, performing equally well in meteorological, industrial, laboratory and other demanding settings. Model 085A is a combined relative humidity/temperature sensor. Both sensors can be used with a variety of radiation shields.

The 083F/085A Relative Humidity Sensor measures variance in the capacitance change of a one- micron thick dielectric polymer layer. This film absorbs water molecules through a metal electrode and causes capacitance change proportional to relative humidity. The thin polymer layer reacts very quickly, providing up to 90% of the final value of relative humidity in fewer than five seconds. The sensor’s response is essentially linear, with small hysteresis, and negligible temperature dependence.


  • All solid state construction, digital electronics
  • Fast response of less than 5 seconds to 90% of final value
  • Low power consumption of 4 mA at 12 VDC
  • Easily cleaned using distilled water
  • 0-1V output for 0-100% RH
  • Will operate from a 12 VDC battery


Specifications are subject to change at any time.
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