Electronic socket Watt-hour Meter

Functions:
-Measure active electrical energy;
-8 digits LCD display;
-voltage valid value;
-current valid value;
-active power value;
-date, time display;
-ralay tripping;
-setup tripping timing and switching timeing;
-switching by hand after tripping, tripping automatically after three hours;
-electrical energy record combination key clear zero;
Specification characteristic:
-standard: GB2099.X-1997/BC17215-2003;
-specification: 220V 50HZ max current 10A;
-accuracy: 1.0s;
-constant: 6400imp/kwh;
-power consumption: 2W;
-weight: 250g;
-dimension: 158?0?0(mm);
-working temperature: -10---35;