Rated AC range: 170V ~ 250V Rated current: 10A Rated power range : 0-2500W Energy recoding range: 0-10000Kilowatt-Hour Display panel: black-white digital LCD. Accuracy: 0.0001Kilowatt-Hour , 0.0001W Basic operation temperature: -10 ~ 35 degree Power consumption: less than 0.01W Standards: standards for every part of the world.