• Relative Humidity Sensor

Relative Humidity Sensor

View Quote

Can we help you?


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.

  • 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

  • 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


The 083E Relative Humidity Sensor measures variance in the capacitance change of a onemicron 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.


Input Power: 4 mA at 12 VDC (10-14 VDC)

Relative Humidity
  • Sensing Element: Thin film polymer capacitor
  • Range: 0 - 100% relative humidity
  • Temperature Operation Range: -50°C to +50°C (-58°F to 122°F)
  • Response Time: 10 sec. with 2 m/s aspiration
  • Temperature Coefficient: 0.04% RH/°C
  • Accuracy: ±2.0% from 0 – 100% humidity
  • Output: 0 to 1 VDC – Standard (0 to 5.0 VDC Optional)
  • Temperature Sensor: Themistor (precision multi-element)
  • Temperature Operation Range: -50°C to +50°C (-58°F to 122°F)
  • Accuracy: ±.10°C (0.18°C)
  • Output: Resistive
Physical Characteristics
  • Dimensions: 0.75 in (19.05 mm)
  • Diameter: 7.5 in (190.5 mm) length
  • Weight: 2.5 oz (70.9 g)
Ordering Informations