1.This energy meter is with RS485 coummunication.6+1 digits LCD display shows the power consumption.2. It features high reliability, small volume, light weight, beautiful appearance, advanced technology.3. Standard 35mm din Rail installation, easy and convenient.It has good anti-electromagnetic interference, low power consumption, high precision, high overload, high stability, anti electricity-stolen and .4.This table is suitable for the measurement of rated frequency 50 Hz single-phase ac active electricity, used for fixed installation indoors.5.The meter is fully in conformity with the relevant technical requirements of GB/T17215.321-2008 national standard and the IEC62053 standard of grade 1 or level 2 single-phase energy meter, which can directly and accurately measure active energy of the energy consumption.Material: ABScolour: whitePackage Contents:1 x Electrical meterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.