Megatesters Small, Versatile Multitester

Megtester Inc.’s Megatester allows technicians to test 3, 6, 12, 24, 110, & 220 AC/DC un-energized circuits. It can be used to test bulbs, fuses, switches, trace wires and find bad grounds. It can 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 electrical conductivity and electrical continuity. Megatester has passed Underwriters Laboratories testing programs and comes with a lifetime guarantee.

http://www.megatester.com