Function 1 Electrical parameter measurement function voltage current active power power 2 Overload alarm function overpower alarm threshold the backlight and power flicker tips 3 The power alarm threshold preset function can set up their own power alarm threshold 4 Power down data storage function 5 Large screen LCD screen full display function display voltage current active power power 6 Backlight Display and key Display Interface Display voltage current power energy parameters from the large screen LCD screen simultaneously Display Format 1 Power measurement range 0 2kW1kW display format within 0 0 999 9W 1kW above the display format 1000 2000W 2 Power measurement range 0 9999kWh10kWh within the display format 0 9999Wh Above 10kWh display format 10 9999kWh 3 Voltage Test Range 6 5 100VDisplay Format 6 50 99 99V4 Current Test Range 0 50A or 0 100ADisplay Format 0 00 99 99A Operation Tips 1 The backlight controlBy short press the button to turn on or off the backlight In the backlight mode the data will automatically store when the power down 2 The energy clearedStep 1 Press the power button 5 seconds until the digital display CLr then release the button Step 2 Now it is in the energy clear mode press the button again the energy data is cleared and stop flashing Step 3 If in the energy clear mode you do notpress the button in 5 seconds then the energy