Prokit's Industries MT-4014 - Manual (Page 6)

The meaning of the symbols represented by the
following：
1. Indicating it is now in the data-holding state
2. Indication to back light
3. Display zone
4. Display zone
5. Average / Maximum / minimize
6. Humidity units
7. Temperature units
8. Indication to low voltage of the batteries
■. Operation Instruction
*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
away from the sensor.
1. Put the instrument with enough battery power in the
hand, press the ON/OFF key to turn the power on and
enter into the measuring mode. The LCD will display the