[Design upgrade] The DIN rail for calibration of three-phase meters is easy and easy to install, with low power consumption, high accuracy and high stability.The housing is made of insulating material and is leak -free, which guarantees its safety in use and at the same time saves space. [LCD digital] The measuring device has a transparent upper cover that enables easy observation of the operation of the electronics inside the measuring device, a flame-protected housing and an LCD display that shows precise data and stores the current measurement values of the measuring device when theyMain security is switched off. [Easy to install] It can be installed directly on the terminal battery in order to meet the networking of household multiple.The power consumption measuring device can be installed on a DIN rail and can be used for energy parties in offices, industrial stream, hospitals, schools, apartments and shopping centers. [Exact measurement] The three-phase four-man energy counter has very low power consumption and is often used in energy measurement systems.This three-phase meter also offers the possibility of multiparameter measurement, which can be seen at a glance on the LCD display. [Safe and safe] The counter can be the performance status (L1, L2, L3), the pulse signal (400IMP/KW/H, the pulse LED must flashing during operation), an 8-digit backlit LCD display, a 6+2-digit display (9999.11 kWh), display accurate data and an intelligent meter chip. Color: As Shown Material: plastic Package Contents: 1 x kwh meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.