Features: Energy meter with LCD backlight digital display, alternately displays power consumption, voltage, current and power. AC220V/50Hz voltage, 5A-80A current, 17000W power, 1000imp/kwh pulse output and with pulse output indicator. 35mm DIN-rail mounting; 17.5mm pole width; supports up-out and down-in / up-in and down-out wiring method, easy to install. Uses microelectronics and digital processing technology to measure electrical energy, accurate and reliable. Large-scale integrated circuits and precision SMT technology, with good electromagnetic interference resistance and stable performance. Specifications: Material: Plastic Model: DDM15SD Accuracy: First class Reference Voltage: 220V/50Hz Reference Current: 5-80A Display: LCD backlight digital display Installation: 35mm DIN-rail Pole Width: 17.5mm Wiring Method: Up-out and down-in / up-in and down-out Power: 17000W Environment Temperature: -20~+50 Item Size: approx. 7.8 * 3.7 * 6.6cm/ 3.1 * 1.5 * 2.6in Item Weight: 200g/ 7.1oz Package Size: 8 * 7 * 4cm/ 3.1 * 2.8 * 1.6in Package Weight: 300g/ 10.6oz Note: This energy meter does not have the reset function. Package List: 1 * Energy Meter