Installation Size: 76 x 39mm Electric : 0-9 99999kwh,when the electric power between 0 and 999.99kwh, the display accuracy is 0.01kwh, when between 10000.0-9999.9kwh, the display accuracy is 0.1kwh,when between 10000.0 and 999999kwh, the display accuray is 1kwh. active power: 0-45000W when the active power between 0 and 9999.9W, the display accuracy is 0.1W Auto-saving: when power off, the electric be saved. The saved electric Be accumulated continue when the meter power-on next time., Weight: 0.89066753848 Pounds, Manufacturer: Hfgdnchva