Ac Digital Power 20 Amp Watt Meter Box

Key Functions:

Backlight control: Short press the key to turn on or off the backlight, the backlight has a memory function, and it can store the on or off state when power is off.
Reset energy:
Step 1: Long press the key for 5 seconds until the number in the energy display window flashes, then release the key.
Step 2: Short press the key again, then the energy value is cleared, and exit the reset flashing state. If you don’t want to clear, then long press the key for 5 seconds again until the number doesn’t flash, which means the energy value is not cleared and will exit the reset state.
Set power alarm threshold:
Step1: Long press the key until the LCD screen display “SET CLR”, then release the key to enter the setting state
Step 2: The power window displays the current power alarm value and the last digit begins to flash, then you can short press to plus 1, when there is no operation over 3 seconds, it will switch the digit position automatically, the setting method is as same as the above.
Step3: After finishing, the setting, long press the key over 5 seconds will store automatically and exit, the range of active power threshold is 0.0–4.5kw