Magicfly Digital LCD Electricity Usage Monitor Watt Voltage Amps Meter Operating volt: 120V AC; Frequency display: 60Hz;Large LCD display;Cumulative Kilowatt-Hour Monitor Wide voltage range: 120V--150V; Operating current: Max 15A Wattage display (watts): 0W-- 1800W; Current display (amps): 0.0A16.0A Price display range: 0.00/KWH-99.99/KWH; Total KWh and cost display: 0.000KWH-9999KWH, 0.00-9999 Forecast Your Costs;Calculates electricity expenses;Displays volts, amps, wattage within 3% accuracy