How It Works

 

There are so many things Megatester can do. Here are just a few:

  • Test fuses, bulbs, switches, cords, thermostats and more.

  • Trace and isolate single wires among complicated setups.

  • Test whether a circuit is closed or open.

  • Test electronics and electronic circuits without turning them on.

  • Test electical conductivity.

  • Test electrical continuity.

  • Megatester can test almost all unenergized circuits from 3 volts to 220 volts.


 

 

 

This ingenious tool is safe and easy to use for all kinds of testing and troubleshooting. Megatester is UL listed, so it's proven safe to use.