1.Large & Clear LCD Display for Easy Reading. 2.Seven display modes, transferred by pressing "FUNCTION" button. 3.Overload warning displayed on LCD. 4.Resetting for abnormal display or no-response of button. 5.Built-in 3.6V rechargeable battery (NI-MH) to store electricity and saving setting. Descriptions: 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. Specifications:  Model:KWE-PMB01 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(optional) Color: white Item Size: 72X70X158mm Package information: Package size:  82X76X165mm/3.23 x2.99 x6.50 in Package weight: 210g /7.4oz Package included: 1 * Plug-in Power meter  (Plug type accoring your order) 1* English Instruction manual