The Met One 083E represents sensitivity, accuracy, linearity and stability not encountered with conventional relative humidity sensors. It is extremely well suited for meteorological, industrial, laboratory and other demanding applications.

The sensor can also be supplied with a temperature sensor mounted in it and used with various radiation shields for reliable, accurate measurements.

The 083E is based upon the capacitance change of a polymer thin film capacitor. A one-micron thick dielectric polymer layer absorbs water molecules through a thin metal electrode and causes capacitance change proportional to relative humidity. The thin polymer layer reacts very fast, and therefore, the response time is very short; less than five seconds to 90% of the final value of relative humidity.

  • 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

Technical Specifications


Input power 10 to 18 VDC @
Dimensions 8.5 in (21.59 cm) L x Diameter: 0.75 in (1.91 cm) Ø
Weight 2.5 oz (70.9 g)

Relative Humidity

Range 0 - 100% Relative Humidity
Accuracy ±2.0% from 0 - 100% relative humidity
Resolution 0.1 m/sec
Output 0 to 1 VDC standard (0 to 5.0 VDC optional)
Temperature range -50 °C to +50 °C (-58 °F to 122 °F)
RH sensing element Thin film polymer capacitor


Range -50 °C to +50 °C (-58 °F to 122 °F)
Accuracy ±0.10 °C (0.18 °F)
Output Resistive
Sensor Thermistor


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