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Extech Dataloggers Selection Guide

 
Model EA20 EA25 RH520A RHT20 42270/75 42280
%RH
Temperature
Dew Point -
Wet Bulb - - - -
IR Thermometer - - - - - -
Max / Min - -
Differential Temp - - - - - -
Ext. Temp. Probe Available - - - - - -
Remote Probe - - -
Calibration Solutions Available - - - - - -
Big Digit Display - -
Datalogging
PC Interface -
Graphical Display - - - - -
Audible and/or Visual Alarm - - -
Real Time Stamp - - - -
NIST Available - - - - -
Time/Stopwatch - - - - -
Air Velocity - - - - - -
X