General Tools MM9 Moisture Meter for Wood, Walls & Drywall Detection

The General Tools MM9 Pin & Pinless Moisture Meter helps you identify and assess moisture quickly and accurately, without damaging finished surfaces. Whether you’re tracking down a leak, checking before a drywall install, or performing a home inspection, this 2-in-1 tool gives you the flexibility to scan large areas and take targeted readings. Start with the pinless pad sensor to scan drywall, flooring, or lumber for general signs of elevated moisture. Once a wet area is identified with the tri-color bar, flip open the cap to expose the pin sensors, allowing you to zero in on the exact moisture percentage and determine the extent of the issue. The MM9 displays real-time moisture percentages on a backlit LCD screen in pin mode, and an intuitive tri-color bar (green/yellow/red) to help you understand conditions quickly in both pin and pinless mode. A Data Hold button freezes readings for easy comparison or documentation, while a low battery indicator keeps you informed and ready. With a rugged design built for frequent use, the MM9 delivers reliable performance that belongs in every inspector’s, contractor’s, or DIYer’s kit.