LCD Display Electricity Usage Power Meter Socket Energy Watt Voltage Amps Tester Wattage KWH Consumption Analyzer Monitor with Backlight Outlet AC 230V~250V  This power meter is a monitoring and testing instrument which determines the power consumption of a connected appliance and the cost of the electricity consumed, helping users to track their electric consumption and reduce the power bill and carbon emissions. Features: Great for Energy Consumption Monitor: used to measure the power consumption, current, voltage, power and cost of the connected appliance, helping save energy and money. 7 Display Modes: it can display time, watt, cost, cumulative electrical quantity, voltage, frequency, current, power factor, minimum power, maximum power, price. Large LCD display: Design with backlight, easier and clearer to read even in the poor light environment. Electricity Price Setting: you can set the electricity price according to the actual condition in 00.00 COST/KWh~99.99 COST/KWh. Overload Setting: when current load power goes beyond the max. load power, the letters "OVERLOAD" on LCD will keep blinking to remind you. Reset Function: it allows resetting for abnormal display or no-response of button. Built-in Battery: built-in a rechargeable battery to store electricity and save memory setting when power failures. Specifications: Material: PC Plug Type: EU Plug / US Plug / UK Plug / AU Plug (Optional) Working Voltage: 230V~250V(EU) / 230V~250V(UK) / 110V~130V(US) Color: White Price Display Range: 0.00€/KWH~99.99€/KWH Total KWh & Cost Display: 0.000KWH~9999KWH, 0.00€~9999€ Battery: built-in a 3.6V 20mAh rechargeable NI-MI battery(included) For EU Plug Technical Parameters: Operating Voltage: AC230V Frequency Display: 50Hz Operating Current: Max. 16A Wattage Display: 0W~3680W Current Display: 0.0A~16.0A For US Plug Technical Parameters: Operating Voltage: AC120V Frequency Display: 60Hz Operating Current: Max. 15A Wattage Display: 0W~1800W Current Display: 0.0A~15.0A For UK Plug Technical Parameters: Operating Voltage: AC230V Frequency Display: 50Hz Operating Current: Max. 13A Wattage Display: 0W~2900W Current Display: 0.0A~13.0A Item Size: 6 * 4 * 13cm / 2.4 * 1.6 * 5.1in (L * W * H) Item Weight: 158g / 5.6oz Package Size: 14.3 * 8.5 * 6.5cm / 5.6 * 3.3 * 2.6in Package Weight: 185g / 6.5oz Package List: 1 * Power Meter 1 * User Manual(English)