Features: 1Microelectronic Technology: This single phase energy meter adopts microelectronics technology, imported large scale integrated circuits, advanced digital sampling and processing technology and SMT technology development, which can accurately and directly measure the active energy consumption in 50Hz single phase AC grid load. 2LCD Screen: This energy meter can measure positive active energy when measuring electrical energy, which is clearly displayed through the LCD screen. 3Safe And Reliable: This single phase energy meter has low power consumption, high accuracy, high overload, anti theft current and other characteristics, which is very safe and reliable. 4DIN Rail Installation: This single phase energy meter uses standard 35mm rail to mount, which is easy to install, and small in size and light in weight. 5Excellent PC Material: This single energy meter is made of excellent PC material, which is strong, wear resistant and flame retardant, and will not be warped by the high temperature generated by the working of the meter. Package included: 1 x Single Phase Energy Meter 4 x Plug