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083E Relative Humidity Sensor

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083E Relative Humidity Sensor

The 083E Relative Humidity Sensor is a highly sensitive and stable temperature 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.

This model is also available with a mounted temperature sensor, and can be used with a variety of radiation shields.


The 083E 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.


  • The sensor is mounted on a small probe, which measures, records and displays humidity levels
  • Because the sensor measures only ambient humidity, in most settings temperature compensation is unnecessary
  • The probe body is water tight and made from corrosion resistant aluminum
  • Immersion of the sensor element in water does not adversely affect the calibration

Product Specifications

Input Power4 mA at 12 VDC (10-14 VDC)
Sensing ElementThin film polymer capacitor
Range0-100% relative humidity
Temp. Operating Range-50°C to 50°C (-58°F to 122°F)
Response Time10 sec. with 2 m/s aspiration
Temp. Coefficient0.04% RH/°C
Accuracy+/- 2.0% from 0-100% humidity
Output0 to 1 VDC standard (0 to 5 VDC optional)
Temperature SensorThermistor (precision multi-element)
Temp. Operating Range-50°C to 50°C (-58°F to 122°F)
Accuracy+/- 10°C (0.18°C)
Dimensions.75″ (19.05 mm) diameter
7.5″ (190.5 mm) length
Weight2.5 oz (70.9 g)