active : 0-45000W when the active between 0 and 9999.9W, the display accuracy is 0.1WElectric energy: 0-9 99999kwh,when the electric 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.Installation Size: 76*39mmAuto-saving: when off, the electric energy will be saved. The saved electric energy will Be accumulated continue when the meter -on time.Range:AC voltage: AC 80.0-300.0V/200.0-450.0V(You should select the suitable type ofmeter when your making order)AC current: AC 0-99.99A, minimum resolution is 0.01AAC current: AC 0-40.00A, minimum resolution is 0.01A frequency: 45.0Hz-65.0Hz factor : 0.00-1.00PFColour:blackMaterial:ABS+ electronic componentsSize:79*43*48mmPackage Contents:1 x meter1 x CT1 x Instruction manualOnly the above package content, other products are not included.Note: Light 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.