Description 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. Measures various parameters: power (W), energy (kWh), volts, amps, hertz, power factor and maximum power (W), time, days - kWh is vital as this is what your electricity bills are based on! Feature: Large, clear LCD display for easy reading (screen dimension: 45mm x 70mm). Cumulative Kilowatt-Hour Monitor Calculates electricity expenses Electricity price setting by pressing COST, FUNCTION, UP and DOWN button according to the instructions Sets electricity price value which ranges 00.00COST/KWH ~99.99COST/KWH Displays volts, amps and wattage accurate to 3% Low power consumption. Built-in Battery(3.6V rechargeable batteries ) backup - allows meter to be moved (and viewed) without losing readings. (Interior perimeter is approximately 20"inches: exterior perimeter is approximately 22"inches, This measurement is after you get the collar on pets neck.) Specification: Power consumption of the Power Meter Monitor: 0.5W Operating voltage: 120VAC Frequency display: 60HZ Operating current: max 15A Wide voltage range: 110V-130V 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: 0.00 COST/KWH --> 99.99 COST/KWH Total KWh and cost display: 0.000KWh-9999KWh, COST: 0.00---->9999 3-pin US plug Dimensions: Length = 155mm; Width = 70mm; Height = 45mm (not inc. pins) Functioning indicator 8 DISPLAY MODES: -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: 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.