Product photoKlein Tools MM325 Digital Multimeter
A durable general-purpose meter for controlled residential and light-commercial troubleshooting.

A professional True-RMS meter with built-in non-contact voltage detection and low-impedance mode.
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Frequent electrical troubleshooting by trained maintenance professionals and electricians.
Professional capability does not reduce electrical risk. Follow applicable lockout, verification, PPE and licensing requirements.
Fluke 117 Electrician’s Multimeter belongs in a serious building-maintenance toolkit because electrical complaints often begin with simple questions: which breaker serves this outlet, is voltage present, is a GFCI responding, or is a circuit behaving differently from the rest of the building? A professional True-RMS meter with built-in non-contact voltage detection and low-impedance mode. Frequent electrical troubleshooting by trained maintenance professionals and electricians. Having appropriate test equipment can improve communication with electricians and help trained staff perform limited first-pass checks within the tool’s rating and their legal scope. It does not authorize unlicensed electrical work, and it does not make energized equipment safe. Professional capability does not reduce electrical risk. Follow applicable lockout, verification, PPE and licensing requirements. Owners should have clear rules about who may use electrical test equipment, when circuits must be de-energized, and when a licensed electrician must take over. In many jurisdictions, permits and licensed trade work are required for repairs that go well beyond basic observation or testing.
We do not claim independent laboratory testing of every product. Building Owner Tools Catalog selections are based on manufacturer-published specifications, practical fit for common building use cases and category coverage. Always verify current specifications with the manufacturer or retailer.