About this product: 1.Energy meter with LCD digital display, displays electricity consumption, voltage, current and power in turn. 2.Voltage AC220V/50Hz, current 5A-80A, power 17000W, pulse output 1000imp/kwh and with pulse output indicator. 3.35mm DIN rail mounting; 17.5mm post width; supports Up-out and Down-in / Up-in and Down-out wiring method, easy to install. 4.Adopt microelectronics and digital processing technology to measure the electric energy, precise and reliable. 5.Large-scale integrated circuits and precision SMT technology, with good resistance to electromagnetic interference and stable performance. Features: Material: plastic. Model: DDM15SC. Accuracy: first year. Reference voltage: 220V / 50Hz. Reference current: 5-80A. Display: LCD digital display. Installation: 35mm DIN rail. Pole width: 17.5 mm. Wiring method: Up-out and Down-in / Up-in and Down-out. Power: 17000W. Environmental temperature: -20 ?? ~ +50??. Item size: approx. 7.8 * 3.7 * 6.6 cm / 3.1 * 1.5 * 2.6 inch. Item Weight: 200g / 7.1 oz. Package size: 8 * 7 * 4cm / 3.1 * 2.8 * 1.6in. Package weight: 300g / 10.6 oz. Note: This energy meter does not have reset function. Package List: 1 * meter energy.