This is a single phase energy meter. high quality with an LCD display showing voltage, current, power, total energy in kWh, etc. in real time. Calculates the total consumption and displays the energy consumption in real time via the mobile phone,Manufactured; Made of high quality ABS, impact resistant, scratch resistant. heat and cold, with good insulation. Can be fixed; on a 35 mm DIN rail for simple and easy installation. The single-phase electronic active energy meter DIN rail type DDM15SD is a new type of single phase active energy meter. to 2-wire with micro-electronics, the introduction of large integrated circuits, advanced digital technology and SMT technology, etc., with proprietary rights. intellectual totally independent and a minimal size. It can accurately and directly measure the consumption of active energy at any time. 50 Hz or 60 Hz in single-phase networks at alternating current. Features and Specifications:Standard 35mm DIN rail mountingWidth bipolar (modulo 17.5 mm)5+1 backlit LCD display; as standard (99999.1 KWh)Functions: display of electricity, voltage, current, frequency, power factor. LED for energy pulse supply signal (red).Unidirectional measurement of single-phase active energy consumption to 2 sons. This is independent of load current flowDirect-connected operation with two wiring options. Type S wiring as standard, with Type U wiring optional.DD15SD series: direct connection, top to bottom access, top to bottom access, top to bottom, mountable, Type S wiring as standard.√DDM15SD series: end cover; incorporated, beautiful and elegant, protects the safety electricity. Model DDM15SDAccuracy: Class 1Reference voltage: 220V/230V 50/60HzCurrent specifications: 5(80)ANote: current specification: reference current (maximum current) Insulation performance: alternating voltage 4KV, 1 minute, 1.2/50us 6KV waveform impact voltageDisplay mode: LCD with backlit displayMethod Installation: Rail MountWiring Method: Bottom in, top out / top in, bottom outWiring Power product: 17000WAmbient temperature: -20~+50Note: This model is not not delivered with an update function. zero. Packing List:1 x Energy Meter