Features:Electrical parameter measurement function(voltage, current, active power, energy).Overload alarm function (over power alarmthreshold, backlight and power flashing to alarm).Power alarm threshold preset function (canset power alarm threshold).The reset function of energy key. Store data when power off.Backlight function.Display interface is a large-screen LCD, itcan display voltage, current, power, energy parameters at the same time.Specifications:Working Voltage: 80~260VACTest Voltage: 80~260VACRated Power: 100A/22000WOperating Frequency: 45-65HzMeasurement Accuracy: 1.0 gradePower Test Range: 0~22kW (Within 1kW, thedisplay format is 0.0~999.9W; Within 1kW~10kW, the display format is1000~9999W; 10kW and above, the display format is 10.0~22.0kW.)Energy Test Range: 0~9999kWh (Within 10KWh,the display format is 0~9999Wh; 10kWh and above, the display format is10~9999kWh.)Voltage Test Range: 80~260VDisplay Format: 80~260VCurrent Test Range: 0~100ADisplay Format: 0.00~99.99AWeight: 106g(approx.)Package Includes:1 x Meter1 x Current Transformer