Digital Wattmeter Power Meter Countdown Timer Socket Grounded

Features:
LCD screen design, easy to read the data and know the working situation.
It has advanced feature of history bar graph of past days/weeks/months daily consumption.
By pressing ENERGY button repeatedly, LED display will show Volts, Current in Amp, Power in Watt, Frequency and Power Factor.
Simply plug the meter into the wall and then plug your appliance into the socket.
Only to be used indoor, in dry condition and within max load.