Wattmeter Energy Meter Socket, Electricity Consumption Socket with 7 Monitoring Modes and Backlit LCD Screen, Electricity Consumption Measurement for Energy Saving, Maximum Power 3680W Electricity meter function and 7 modes: Total 7 monitoring modes, this power meter for socket supports monitoring time, power, cost, accumulated power consumption, voltage , frequency, current, power factor, minimum power, maximum power and the price of electricity. Counts consumption in kilowatt hours with a high power tolerance of 16A max, compatible with 250Vac. Backlight and memory function : Power consumption socket, measure power consumption with the integrated backup battery, this power meter can retain data in the event of a power outage. Press any key to wake up the backlight for 10 seconds to check data in the dark. Overload Warning: Wattmeter socket digital energy meter, When the current load of the connected device is exceeded. exceeds 3680W, the LCD keeps flashing OVERLOAD to remind to overload. the user and protect the connected device and the power meter socket itself against damage. Easy to use. To use: Just press the "FVNC" button of the energy meter to select the monitoring mode, the "COST" button to set the unit price of electricity. , the "UP" and "DOWN" buttons to adjust the price. "RESET" button to clear all settings, suitable for to seniors and young people. Suitable for numerous electrical appliances, Christmas lights, coffee machines, etc. bread, baking machines coffee, computers, game consoles, printers, televisions, hi-fi systems, DVDs, ovens, etc. Usage: Measure and calculate the energy consumption and costs of your connected devices / effectively saves electricity and money / reliably determines the energy consumption of electronic devices at home. home and office | Caution: The power consumption of devices turned on under load is measured (The device only records data when the working power of the household appliance is greater than 2W; ) How to use: < p class="a-spacing-base">1.The digital energy meter socket wattmeter is used to measure your energy consumption. measure electricity consumption household appliances and appliances calculate the cost of electricity. 2.The This product has a built-in rechargeable battery. If purchased new or unused for a long time, please plug it in to recharge. 3. If the display and button response are abnormal, you can press the "RESET" button to reset the system. After reset, you need to reset the settings.