
6
Operating Instructions
*NOTE: In order to ensure the accuracy of the
measurement readings, all the interference sources
which may affect the measurement results about
temperature and humidity (such as the hand) must be
kept away from the sensor.
1.Press the ON/OFF key to turn the power on. The
LCD will display the current value of temperature and
humidity. The default humidity / temperature unit is %
RH / ℃.
2.Press Unit to change the humidity / temperature
units. The adjustable parameters are %RH (Relative
Humidity), td(Dew point Temperature), ℃, ; press
The Mode and keys to change MAX/MIN and HOLD
mode.
3. Switching the back light on
When the meter is on, press key for more than
2 seconds; the back light will be turned on, and the
icon will be displayed on the LCD. Press the key
HOLD
Light
HOLD
Light