GB
Press the HOLD button; a relative humidity indicator will appear on display. Press and hold the
HOLD button to select the type of test material. The relative humidity indication will be visible on
the display.
Press the HOLD button to save the measured value on display. It will be visible until the HOLD
button is pressed again.
Detector maintenance
Use a soft, dry cloth to clean the detector. Do not use cleaning agents. Do not stick any stick-
ers, especially those containing metal, to the detector. This will adversely aff ect the detector's
operation.
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O R I G I N A L
I N S T R U C T I O N S