please attention No Battery Large & Clear LCD Display for Easy Reading. Seven display modes, transferred by pressing "FUNCTION" button. Overload warning displayed on LCD. Resetting for abnormal display or no-response of button. 1.Power Meter is a monitoring and testing instrument which determines the power consumption of a connected appliance and the cost of the electricity consumed. 2.Measure Voltage, Frequency, Current, Power Factor, Wattage, minimum & maximum Wattage and record cumulative Kilowatt-hour KWh, Time, Date and Electricity Expenses. Model:KWE-PMB05 Operating voltage: 230V 50Hz for EU / UK / AU plug, 120V 60Hz for US plug Operating current: Max 16A Wide voltage range: 230V - 250V for EU / UK / AU plug, 110V - 130V for US plug Timing display range: 0 second----9999 days Wattage display (watts): 0W----3680W Voltage display range: 0V----9999V Current display (amps): 0.0----16.0A Frequency display: 0Hz----9999Hz Minimum wattage display range: 0.0W----3680W Maximum wattage display range: 0.0W----3680W Price display range: 0.000KWH----99.99KWH Total kilowatt-hour and cost display: 0.000KWH----9999KWH DIY supplies: electric Plug: EU plug / US plug / UK plug / AU plug/FR plug/BR plug/IT plug(optional) Color: blue Item Size: 62X76X129mm Package size: 82X65X145mm/3.23 x2.56 x5.71 in Package weight: 180g /6.34oz 1 * Plug-in Power meter (Plug type accoring your order) 1* English Instruction manual