Megatester

The Megatester can check automotive single and double filament bulbs, fuses, breakers, trailer wiring, trace wires, finds bad grounds and more. Use Megatester on 3V, 6V, 12V and 24V DC batteries 110 and 220 AC household electrical wiring. This tool works by safely diverting the 3V from the internal batteries to the clip and end cap, allowing users to perform all kinds of electrical tests. Touch the clip and end cap to the part that needs testing. If the Megatester lights up the circuit is good.