... single-phase electronic watt-hour meter adopt specialized LSI, the device typifying new periphery component, simple structure, high reliability,low power consumption, long ... AC active Watt-hour Meter standard. Function: High accuracy: error<±1.0% 1st class(<±2.0% 2nd class) High sensitivity : initial starting currency <0 ... to be anti-creep. Rated current(A) 1.5(6),2.5(10),5(20),5(30),10(40),10(60 ...