Easily measure the power consumption and cost of your electrical appliances. Simply plug the meter into the wall and then plug your appliance into the meter. With the help of this Power Meter Monitor, You can make certain how much your standby appliances cost, what the power factor is, whether the appliances are really charged, and how long have your appliances been charged. Specifications: Power consumption of the Power Meter Monitor£º0.5W Operating voltage: 120VAC Frequency display: 60HZ Operating current: max 15A Wide voltage range: 110V-130V The set Wattage display (Watts) is 0W~9999W; but the real Wattage display (Watts) is 0~1800W Timing display range: 0 second~9999 days Voltage display range: 0V~9999V Current display (amps): 0.000A~15.000A Frequency display: 0Hz~9999Hz Price display range: 0.00COST/KWH¡«99.99COST/KWH Total KWh and cost display: 0.000KWh-9999KWh, 0.00COST----9999COST Dimensions: Length = 155mm; Width = 70mm; Height = 45mm (not inc. pins) It enjoys 8 display modes as below: Time/Watt/Cost Display; Time/Cumulative electrical quantity Display; Time/Voltage/Frequency Display; Time/Current/Power Factor Display; Time/Minimum Power Display; Time/Maximal Power Display; Time/Price Display; Overload Display. Package Includes: 1X Power Meter(US Plug) 1X English User Manual NOTE: If an abnormal display appears or the buttons produce no response, the instrument must be reset. To do this, please press the RESET button.