1. LED digital display rail smart meter, real-time display of voltage, current, power, kWh, frequency, to realize the transparency of electricity consumption. 2. Compact size, 2P open size, 35mm standard rail mounting, easy to operate. 3. With power failure memory function, power failure does not clear zero, accidental power failure do not have to worry about the value is wrong. 4. With power zero function, long key for 10 seconds, after the code appears, the power is zero. 5. Two-page interface cycle display: when the power is higher than 99.99, the first page and the second page can be displayed. Wide range of applications: suitable for rental housing, office buildings, lodging, household, electrical equipment power measurement, etc. Voltage range: AC 70-270V Current range: 0-100A (starting current 0.15A) Power range: 0-25KW (starting power 10W) Power range: 0-9999KWH (starting power 1%) Colour:White Material:pc Package Contents: 1 * smart 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.