ITEM NAME:100A LCD Dispaly Digital Panel Power Watt Meter Voltage Voltmeter Ammeter #JT1 Product Description Description: 100A AC LCD Dispaly Digital Panel Power Watt Meter Tester Monitor Voltage KWh Voltmeter Ammeter Detector Feature: Full screen display has 6 functions: overload alarm, backlight and power flicker. The current power is less than the overload power and relieves the overload alarm. Specification: Model: P06s-100 Maximum power: 22000W Maximum current: 100A Working voltage: 110~250V Voltage accuracy: Â ±1% Current accuracy: Â ±2% Power precision: Â ±2% Product size: 85mm*47mm*28mm/3.34*1.85*1.1'' Net weight: 105g Gross weight: 125g Keys Operation: 1. Short Press the button, switch back light to extinguish. 2. Long press for 3 seconds, enter the overload power setting. 3. Enter the overload power settings, the factory default value is 4.4KW. 4. The highest position flickers, the short press button corresponds to the value plus 1, and the long press 2 seconds is the shift, the maximum can set 99.9KW. 5. Without any keystrokes, exit after 5 seconds and save data. 6. Long press 5 seconds, system reset, accumulative power cleared, overload power reset default value. Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand. Included: 1 x Power Voltmeter Ammeter.Maximum current: 100A. Current accuracy: Â ±2%. The current power is less than the overload power and relieves the overload alarm. Full screen display has 6 functions: overload alarm, backlight and power flicker.