Power Meter Energy Monitor with Backlit LCD Display, 13A Battery Usage Monitor UK Plug with 7 Monitoring Modes/Battery Backup, Overload Warning Watts Volt-Ampere KWH Meter Outlet 2PCS Specification: -Power consumption of Power Meter Monitor: 0.5W - Working voltage: 230VAC - Frequency display: 50HZ - Working current: max 13A - Wide voltage range: 230V-250V - The set wattage display (Watts) is 0W~9999W; but the actual displayed wattage (Watts) is 0~3200W - Timing display range: 0 seconds ~ 9999 days - Voltage display range: 0V~9999V - Current display (Ampere): 0.000A~13.000A - Frequency display: 0Hz~9999Hz - Price display range: 0.00COST/KWH99.99COST/KWH -Total KWh and cost display: 0.000KWh-9999KWh, 0.00COST----9999COST -2-pin German plug - Functional indicators Better Visual Experience - The new upgraded power meter is a large clear LCD display with backlight. 360 viewing without dead angle, clearly visible no matter day or night. Press any button to wake up the backlight. (Note: The backlight time is 5 seconds, and it will not light up when the power is turned off.) Energy & Money Saving - Use this power meter to monitor your appliances& 39; real-time power consumption, current and electricity bills, helping you save energy and money. 7 Monitoring Modes - The energy monitor plug supports to display time, wattage, cost, cumulative power consumption, voltage, frequency, current, power factor, min power, max power, electricity price. Backup Battery and Memory Function - Built-in backup battery, automatically stores the last data when power is suddenly lost. Don& 39;t worry about data loss caused by sudden power outage. Overload Warning and Easy Operation - Once the load exceeds the power value you set (3120W/13A max), the LCD will keep flashing the "Overload" icon on the screen. You will know that the device is energy intensive. It helps ensure electrical safety in your home and minimize losses. Press the "FUNCTION" button to select the monitoring mode. The "COST" button sets the unit electricity price. The "UP" and "DOWN" buttons adjust the price. The "RESET" button clears all settings.