Home > How To > Electrical > Using A Volt-Ohm Meter Electrical Posted on: December 01, 2002 Share on Facebook Share on Twitter Share on LinkedIn Using A Volt-Ohm Meter Use this versatile tool to trace wires, troubleshoot water heaters and light switches, and even check your truck battery By Rex Cauldwell Download the PDF version of this article. (257.79 kB) About the Author Rex Cauldwell Rex Cauldwell is a master electrician and owner of Little Mountain Plumbing and Electric in Copper Hill, Va.