Extech Instruments EA20 Manual

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EA20-EN V1.8 3/14

Introduction

CongratulationsonyourpurchaseoftheExtechEasyView™EA20DigitalHygro‐Thermometer.Thisdevice

measuresHumidity,Temperature,DewPointtemperatureandWetBulbtemperature.Advancedfeatures

include Manual Datalogging of up to 99 sets, MAX/MIN recording, Relative measurement mode, and

elapsedtimer.Carefuluseofthismeterwillprovideyearsof

reliableservice.



MeterDescription

1. Humidity/TemperatureProbe

2. MultifunctionLCDwithbargraph

andstatusindicators

3. PowerON/OFFbutton

4. MX/MNbutton

5. DATAHOLDbutton

6. Humidity/Temperatureselect

button

7. TIMEbutton(forMX/MNelapsed

timer)

8. Temperatureunits(C/F)select

button

9. DEWPOINTtemperatureselect

button

10. RELATIVEmodebutton



11. WETBULBtemperatureselect

button

12. MEMkeymanualdatalogging

controlkey

13. READkeymanualmemorydatareading

controlkey

14.

keystoselectmemory

location

Note:Thebatterycompartmentislocated

ontherearoftheinstrument