Features:_x000D_1. 35mm DIN Rail mounting meets the standards of DIN EN50022._x000D_2. 17.5mm pole width meets the standards of DIN43880._x000D_3. LCD backlight digital display, no reset button, to avoid human manipulation with the data._x000D_4. It displays electricity, voltage, current, frequency and power._x000D_5. Red LED energy pulse signal._x000D_6. Embedded end cover, ensuring power supply safety._x000D_7. With the features of good reliability, small size, light weight, beautiful appearance and easy installation._x000D_8. Adopt microelectronics and digital processing technology to measure electric energy, accurate and reliable._x000D_9. Large scale integrated circuits and precision SMT technology, with good electromagnetic interference resistance and stable performance._x000D__x000D_Specification:_x000D_Material: Plastic_x000D_Model: DDM15SD_x000D_Accuracy: First Grade_x000D_Reference Voltage: 220V/230V 50/60Hz_x000D_Reference Current (Max. Current): 5(80)A_x000D_Insulating Property: 1min 4KV Alternating Voltage, 1.2/50us 6KV Waveform Impulse Voltage_x000D_Display: LCD Backlight Digital Display_x000D_Installation: 35mm DIN Rail_x000D_Wiring Method: Up-out and down-in/up-in and down-out_x000D_Power: 17000W_x000D_Environment Temperature: -20~+50_x000D_Pole Width: 17.5mm/0.7in_x000D_Functions: Display electricity, voltage, current, frequency, power factors_x000D_Product Size: Approx. 8 * 3.7 * 6.7cm/3.1 * 1.5 * 2.6in_x000D_Weight: Approx. 127.8g_x000D__x000D_Package list:_x000D_1 * Energy Meter_x000D__x000D_Note: _x000D_Do NOT has the reset function._x000D__x000D_Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 135mm DIN Rail mounting meets the standards of DIN EN50022. 217.5mm pole width meets the standards of DIN43880. 3LCD backlight digital display, no reset button, to avoid human manipulation with the data. 4It displays electricity, voltage, current, frequency and power. 5Red LED energy pulse signal.