AC 100A 5 in 1 Digital Panel Meter Combo Volt Amp kWh Watt Run Time + CT 40JEOOTDTY Electric Meter Measurement Function (Voltage, Current, Kilowatt Hour, Power, Cumulative Working Time)Total Working Time FunctionElectricity, Cumulative Working Time Bright FunctionLED Backlight On/Off FunctionShutdown Data Saving Function (Save Accumulated Power, Run Time, Display Status and Backlight On/Off Status)Large LCD Screen (voltage, current, kilowatt hour, power, operating time)Current Transformer IncludedSpecification:LED Backlight: Blue LightVoltage Measurement Range: AC 80 - 260VAt. Measuring Range: 0 - 100A Energy Measurement Range: 0 - 9999.99 kWh Rated Power: 0 - 22000W Operating Range: 0 - 9999.59h Operating Frequency: 45 - 65 Hz Measuring Accuracy: Class 1.0Size (L*W*H): 9.6 x 4.4 x 2.4cm/3.78" x 1.73" x 0.94" (Approx.) Key Functions:Up- In normal status sequence change (voltage→current → kilowatt-hour → power → time Working)- In the state of kilowatt-hours and working time, the exit status has been cleared. Down- In normal state, reverse change (runtime → power → kilowatt-hour → current → voltage)- In kilowatt-hour and runtime condition, output cleared. Set- In the state of kilowatt-hours and working time, press 3 seconds to enter the cleared status. OK- In normal state, press to turn the backlight on or off.- In the state of kilowatt-hours and working time, kilowatt-hours or runtime cleared and output status cleared. Note:Note:Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you.