Digital LCD Screen Display:easy to read the LCD provides clear digital reading.And reading:the wattmeter will continuously provide reading of amperes,volts,and watts after connection Provides 8 Electrical Readings:Current (A),Voltage (V),Watts (W),Amp-hours (Ah),Watt-hours (Wh),Peak Amps ( for Ap),Minimum Volts (Vm),Peak Watts (Wp) Perfect troubleshooting tool:it's indispensable for analyzing,testing and troubleshooting any DIY DC power project Multi-functional tool:verify that there is sufficient working voltage under load.Prevent peak current from damaging batteries,ESC,motors,wiring and connectors.Verify correct battery charger for operation (connect your battery and charger).Individual cells are balanced.Set the cut-off voltage and check the battery capacity.Detect the receiver and the actual operating current to determine whether,etc Watt Meter is an excellent addition to your RC hobby,DC circuits,Solar system,Boat/RV and Battery Backup systems