... factory supply CE, RoHS, FCC EU Energy Meter LCD Display Single Phase Current Meter, measures volt, watt, kWh, $ and time, ... 1. Measure real-time voltage of the power supply;2. Measure real-time operation power of the appliances;3 ... 90~150v AC, or 160~280V AC Frequency 50 or 60Hz Power Consumption 0~999.9kWh Electric Cost 0~9999 ... ~ ~!More Pictures: EU Energy Meter LCD Display Single Phase Current Meter