Feature: 1. The product can measure functional voltage, current, power, energy consumption, frequency, power factor, and has powerful functions. 2. It has multiple functions such as resetting the power button and saving data when the power is off. 3. This instrument can be widely used in distribution boxes, small household distribution boxes, etc. 4. Large screen LCD display can display voltage, current, etc. at the same time, without controlling or affecting the load in any way. 5. The blue backlight can be turned on or off manually, making it more convenient for you to use. Specification: Item Type: Digital Display Power Monitor Commodity Material: ABS Measuring Voltage: AC80-300V Measuring Current: 0-20A Measuring Power: 0-4.4KW Measuring Energy Consumption: 0-999KWH Measuring Frequency: 40-65Hz Power Factor: 0-1PF Overload Alarm: Can Be Set Voltage Alarm: Can Be Set Wiring Type: Barrier Terminal Block Installation Method: Embedded. Package List: 1 x AC Digital Display Meter Note: This product has no waterproof function and can only be used indoors in a dry environment.