Calibratable 7-Function Digital Psychrometer

ITEM # EP8710

Calibratable 7-Function Digital Psychrometer

The #EP8710 has the features and specs needed to measure any environment’s ambient temperature, relative humidity (RH), dew point and wet bulb temperatures, and other condensation-related parameters.


Best For:



  • Displays the relative humidity (RH) above the ambient, dew point or wet bulb temperature on a dual-readout LCD
  • Includes an external stem probe for measuring: 1) the surface or internal temperature of a solid object, or the temperature of a liquid or gas; and 2) a solid object's condensation temperature—the difference between its surface temperature and the dew point temperature
  • Min/Max memory + data hold
  • 33% and 75% #HR33 and HR75 reference salts are available to calibrate RH measurement in the field
  • °F/°C switch
  • Auto power off (can be disabled for calibration)
  • NIST calibration is available


  • Temperature measurement range/resolution: 14° to 122°F (-10° to 50°C)/0.1°
  • Temperature measurement accuracy: ±1.8°F (±1°C)
  • RH measurement range/resolution: 0 to 99.9%/0.1%
  • RH measurement accuracy: ±3% from 5% to 95% RH
  • Response time: <80 seconds
  • Length of external probe connecting cable: 48 in. (1.22m)
  • Auto power off: After 20 minutes of inactivity
  • Display size: 1.7 in. (43mm) diagonal
  • Weight (without battery): 3.7 oz. (107g)
  • Power source: "9V" battery (included)


  • External temperature probe
  • Sensor protection cap
  • Battery
  • 1-year limited warranty


  • 7.56 x 2.40 x 1.57 in. (192 x 61 x 40mm)