GREAT PERFORMANCE - This electric meter features high reliability, small volume, light weight, beautiful appearance, advanced technology, standard 35mmDIN guide rail installation, etc.WIDELY USED - This energy meter is suitable for measuring active electricity in rated frequency 50Hz single phase alternating current, used for indoor fixed installation. This single phase meter can measure the positive active energy in the electric energy meter, which is clearly displayed by the LCD backlight screen.LONG SERVICE LIFE - This single phase energy meter has good anti-electromagnetic interference, low power consumption, high precision, high overload, high stability, long service life and long service life.TWO ROWS OF LED DISPLAY - The top row displays the temporary power consumption meter and can be cleared. The bottom row shows the total power consumption and cannot be cleared.WORKING ENVIRONMENT - apply to environment temperature is -25~55, relative humidity is below 95 %, and in the air does not contain corrosive gases and avoids dust, mold, salt fog, condensation, insects, etc.