1. Electric parameter measurement functions (voltage， current， active power， power).
2. Overload alarm function (more than power alarm threshold， backlight and power flashing hint).
3. Power threshold preset alarm function (power can set the alarm threshold).
4. The power button reset function.
5. Power lost data save function.
6. Large screen LCD screen full display function (and display voltage， current， active power， power).
7. Backlight function.
Display and buttons
A display
Shown by the large screen LCD screen display voltage， current， power， electricity parameter at the same time.
2. Display format
1. Power: testing range 0 ~ 22 kw
1 kw display format within 0.0 ~ 999.9 W;
More than 1 kw display format of 1000 ~ 9999 w;
More than 10 kW display format 10.0 ~ 22.0 kW.
2. Power: testing range 0 to 9999 KWH
10 KWH display format within 0 ~ 9999 wh;
Above 10 KWH from 10 to 9999 KWH display format;
3. The voltage: testing the range of 80 ~ 260 v
Display format of 80 ~ 220 v
4. Current: testing range 0 ~ 100 a
0.00 ~ 99.99 A display format.
Three buttons.
1. The backlight control
Through short press button to open or close the backlight， backlight off electricity automatically saved.
2. Power reset
Step 1: long press button for 5 seconds until the power display window digital flicker， then loosen the button;
Step 2: if short press button again， then the battery data reset and exit the reset the flashing status;
Step 3: if the long press button for 5 seconds again until no longer flashing， says not reset and exit the reset state power data.
