Wavetek’s unique Short Finder Brush (SF 10) is a high-speed continuity tester with a pointed-tip probe and a brush probe to deliver fast, simple, and reliable continuity testing. The Short Finder Brush allows you to quickly locate continuity or shorts in complex electrical circuits such as printed circuit card assemblies, multi-conductor cables, mass termination systems, backplanes, connectors, and IC sockets. The Short Finder Brush allows you to brush over circuitry as fast as you wish since even brief probe contact will result in a clear audible tone! Power is provided by two AAA batteries which, under normal use, will last for several months.