It's no secret that electricity bills are on the rise. With the power meter, you can reduce your energy costs and find out which devices are worth plugging in by finding devices that use a lot of power. Simply connect any appliance to the power meter, it will then gauge the actual efficiency of each appliance.Power meter functionIntuitive monitoring of electrical usage and cost awareness can measure power (W), volts, amps, frequency, power factor, maximum and minimum power (W), cumulative time and energy (kWh) and automatically calculate the cost after fixing the price ; monitor home energy usage and help you save on electricity costs Large, clear LCD display with backlight Electricity monitor kilowatt meter has a wide viewing angle and clear digit display; easy to read and use the electricity monitor in dark areas with the clear backlit LCD display Long-lasting data retention memory function Comes with a built-in rechargeable backup battery, the power meter power analyzer can retain data for up to 90 days in the event of a power outage or disconnection of the meter from the outlet; all data includes cost setting will go to zero once reset button is pressed Potable and takes 1 shot only Compact size; the power meter socket leaves the lower wall socket available when plugging into the upper socket; made of high quality fire resistant material; 1-year limited friendly after-sales service; Note: Not compatible with Inverter A and Solar Inverter. Wide Dual Voltage Measurement Range This power monitor can measure voltage from 110-130 Vaand 200-240 Va; 0-16A AMP; 0-3680W of power and indicates overload when charging up to 3680W; Class 1.0 accuracy standard with 0.1W, 0.1V, 0.001A, and 0.001kWh resolution; Note: The label on the back of the power meter indicates the low voltage range only due to certification requirements.EU plugSpecifications:Operating voltage: 230 V AC Frequency display: 50HzWide voltage range 230V.---250VOperating current: max16APower display (watts) 0w----3680wCurrent display (amgs) 0.0A-16.0APrice display range 0.00\/KWH---99.99KWHTotal Kwh and cost display0.000KMH----- 9999KWH000-9999