EE181 Temp/RH Sensor

Air Temp/RH

The EE181 is a rugged, accurate air temperature and relative humidity (RH) probe that is ideal for long-term, unattended applications.

It includes a proprietary coating on the RH element that increases the life of the element and protects it from dirt, dust, salt, or other contaminants. A 1000 Ω PRT measures air temperature for the -40° to +60°C range. For optimum results, the EE181 should be recalibrated annually.

Benefits and Features

  • Well-suited for long-term, unattended applications
  • Accurate, rugged, reliable
  • Outstanding long-term stability
  • Wide operating temperature range
  • User cleanable
  • Compact and easily interchangeable
  • Low power consumption
  • Compatible with all Campbell Scientific dataloggers


Key Specifications

  • Temperature Sensor: 1000 Ω Platinum Resistance Thermometer (PRT)
  • Temperature Measurement Range: -40° to +60°C
  • Temperature Output:Range 0 to 1 Vdc
  • Relative Humidity Sensor: Capacitance
  • RH Measurement Range: 0 to 100% RH (non-condensing)
  • RH Output Signal: 0 to 1 Vdc
  • Accuracy at -15° to +40°C±(1.3 + 0.003 • RH reading) % RH (0 to 90% RH)
    ± 2.3% RH (90 to 100% RH)
  • Current Consumption: < 1.2 mA
  • Startup Time: 2 s





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