• Humidity range: 10 to 98%
    • Accuracy: ±3% (30% to 95%); ±5% (10% to 30%)
  • Temperature range: -4 to 140°F (-20 to 60°C)
    • Accuracy: ±1.8°F (±1°C)
  • Large LCD displays any two parameters simultaneously
  • Stores up to 99 readings for later recall
  • Data Hold, Relative, Min/Max, Programmable power off timer
  • Includes probe with 39" (1m) cable


The Extech EA20 EasyView® hygro-thermometer measures relative humidity, temperature, dew point, and wet bulb and displays any two parameters simultaneously. The EA20 features compact and rugged design, large display with bargraph and numerous functions which make this an outstanding instrument for monitoring humidity and temperatures in cleanrooms, factories, offices or greenhouses.

The Extech EA20 has a humidity range of 10 to 95% with an accuracy of up to ±3% (from 30 to 95% RH) and a temperature range from -4 to 140°F (-20 to 60°C) with an accuracy of ±1.8°F (±1°C). The EA20 can store up to 99 readings for later recall. Other features of the include data hold, MAX / MIN, switchable °C/°F temperature units, programmable auto power off time frame and a timer function for elapsed time between the minimum and maximum readings.

Extech EA20 EasyView® hygro-thermometers come complete with stand, holster, remote capacitance sensor with 39" (1m) coiled cable, six AAA batteries, and convenient carrying case.