Single-phase electronic watt-hour meter, used for measuring single-phase AC active power with rated frequency of 50Hz, suitable for residents, shops and other single-phase AC users as a measuring tool. This product adopts special large-scale integrated circuit and SMT and other high-tech manufacturing, unique process guarantee and technical design, so that it has high accuracy, high reliability, high overload, small power consumption, small volume, light weight and other characteristics · Total power meter display. · Passive pulse output along the way. Color: Blue-white Product size: 156mm*109mm*58mm Net weight (product itself) : 375g