Features: Electrical parameter measurement function (voltage, current, active power, energy). Overload alarm function (over power alarm threshold, backlight and power flashing to indicate alarm). Power alarm threshold preset function (user can set power alarm threshold). Energy reset function. Stores data when powered off. Backlight function. Display interface is a large-screen LCD that can simultaneously show voltage, current, power, and energy parameters. 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 (Display format: 0.0~999.9W within 1kW; 1000~9999W for 1kW~10kW; 10.0~22.0kW for 10kW and above) Energy Test Range: 0~9999kWh (Display format: 0~9999Wh within 10kWh; 10~9999kWh for 10kWh and above) 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