Auto Power Off
Wake-up the meter by switching rotor or pressing any button.
Auto Backlight
The backlight is automatically turned on at dark environment.
BUZZER
The meter beeps once for every valid key-press, and beeps
twice for every invalid key-press.
Power On Options
Press the button while turning the meter on from OFF position.
Cancel button : Clear all stored data
Range button : Display LCD test frame
Function button : Default °C / °F reading
HFR button : Display firmware version
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