Features: Electrical parameter measurement function (voltage, current, active power, energy). Overload alarm function (over power alarm threshold, backlight and power flashing to alarm). Power alarm threshold preset function (can set power alarm threshold). The reset function of energy key. Store data when power off. Backlight function. Display interface is a large-screen LCD, it can display voltage, current, power, energy parameters at the same time. Specifications: Working Voltage: 80~260VAC Test Voltage: 80~260VAC Rated Power: 100A/22000W Operating Frequency: 45-65Hz Measurement Accuracy: 1.0 grade Power Test Range: 0~22kW (Within 1kW, the display format is 0.0~999.9W; Within 1kW~10kW, the display format is 1000~9999W; 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 is 10~9999kWh.) Voltage Test Range: 80~260V Display Format: 80~260V Current Test Range: 0~100A Display Format: 0.00~99.99A Weight: 106g(approx.) Package Includes: 1 x Meter 1 x Current Transformer