Fast and convenient, this generation of intelligent electrical system tester is equipped with a large LCD colour display screen it is designed to fault find all 12 and 24 volt vehicles. It allows you to activate electrical components, test their function, follow and locate bad earths or shorts. Measure DC voltage, Pulsed DC, Current, frequency and duty cycle, perform fuel injection tests and view the wave form display, check the continuity, diodes, confirm polarity, test and operate relays all in a self-protected test unit that is simple and easy to operate.