GREAT PERFORMANCE - It features high reliability, small volume, light weight, beautiful appearance, advanced technology, and 35mmDIN standard guide rail installation, etc. LONG SERVICE TIME - It has good anti-electromagnetic interference, low power consumption, high precision, high overload, high stability, anti electricity-stolen and long life. WIDELY USED - This table is suitable for the measurement of rated frequency 50 Hz single-phase ac active electricity, used for fixed installation indoors Two rows of LED display - The upper row shows temporary power consumption meter and can be cleared. The lower row shows total power consumption and cannot be cleared. Working environment - apply to the environment temperature is -25 ~ 55 , relative humidity is 95%, and in the air does not contain corrosive gases and avoid dust, mold, salt fog, condensation, insects, etc., Weight: 0.3086471668 pounds, Manufacturer: Hilitand