Active Power: 0-45000W. When the active power is between 0 and 9999.9W, the display accuracy is 0.1W. Electrical Energy: 0-999999kwh, when the electrical energy is between 0 and 999.99kwh, the display accuracy is 0.01kwh, when it is between 10000.0-9999.9kwh, the display accuracy is 0.1kwh, when it is between 10000.0 and 999999kwh, the display accuracy is 1kwh. Installation Size: 76*39mm. Automatic Saving: When powered off, the electrical energy is saved. The saved electrical energy will accumulate when the meter is powered on. Range: AC Voltage: AC 80.0-300.0V/200.0-450.0V (You should choose the appropriate type of meter when placing your order) AC Current: AC 0-99.99A, minimum resolution is 0.01A AC Current: AC 0-40.00A, minimum resolution is 0.01A Frequency: 45.0Hz-65.0Hz Factor: 0.00-1.00PF Color: black Material: ABS+ electronic components Size: 79*43*48mm Package Contents: 1 x Meter 1 x CT 1 x Instruction Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.