Features: Energy meter with LCD backlight digital display, takes turns showing electricity consumption, voltage, current, and power. AC 220V/50Hz voltage, 5A-80A current, 17000W power, 1000imp/kWh pulse output 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. Adopts microelectronics and digital processing technology to measure electric 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: -20C to +50C Item Size: approx. 7.8 x 3.7 x 6.6cm / 3.1 x 1.5 x 2.6in Item Weight: 200g / 7.1oz Package Size: 8 x 7 x 4cm / 3.1 x 2.8 x 1.6in Package Weight: 300g / 10.6oz Note: This energy meter does not have a reset function. Package List: 1 x Energy Meter