Description Description 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: easy and clear to read. No backlight / With backlight optional.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: PCPlug Type: EU Plug / US Plug / UK Plug (Optional)LCD Type: With Backlight / No Backlight (Optional)Working Voltage: 230V~250V(EU) / 230V~250V(UK) / 110V~130V(US)Timing Display Range: 0 second~9999 daysWattage Display(watts): 0W~1800WVoltage Display Range: 0V~9999VFrequency Display: 0Hz~9999HzMinimum/Maximum Wattage Display Range: 0.0W~9999WPrice Display Range: 0.00/KWH~99.99/KWHTotal KWh Cost Display: 0.000KWH~9999KWH, 0.00~9999For EU Plug Technical Parameters:Operating Voltage: 230V, 50HzOperating Current: Max. 16ACurrent Display(amps): 0.000A~16.000AFor US Plug Technical Parameters:Operating Voltage: 120V, 60HzOperating Current: Max. 15ACurrent Display(amps): 0.000A~15.000AFor UK Plug Technical Parameters:Operating Voltage: 230V, 50HzOperating Current: Max. 13ACurrent Display(amps): 0.000A~13.000ABattery: built-in a 3.6V 20mAh rechargeable NI-MI battery(included)Item Size(without plug): 6.8 * 4 * 14cm / 2.7 * 1.6 * 5.5in (L * W * H)Item Weight: 186g / 6.6ozPackage Size: 15 * 8 * 7.2cm / 5.9 * 3.1 * 2.8inPackage Weight: 215g / 7.6ozPackage List:1 * Power Meter1 * User Manual(English)