The GT Power 130A Power Analyzer with backlit display is a "must have" diagnostic tool for the RC enthusiast. This self-powered device allows you to measure power and energy consumption of any device with a battery. Use it to ensure peak currents are safe for motor, ESC, wiring and connectors. Test motors, propellers, and EDFs to determine their safe operating ranges. You can also check battery health and performance and evaluate charging efficiency. The GT Power 130A Watt Meter and Power Analyzer does it all it in one convenient, portable device. Please note, this meter comes with bare wires so you can solder on the connectors of your choice.