10 Best Sheetrock Moisture Meters 2025 in the United States

The General Tools MMD4E Digital Moisture Meter is a versatile tool designed to help detect moisture levels in wood and drywall, making it ideal for preventing mold and mildew growth. It features a pin-type sensor, which provides a wide measurement range of 5-50% for wood and 1.5-33% for building materials. This ensures accurate readings for various materials in your home.

The backlit LCD display with large digits makes it easy to read the moisture levels, even in low-light conditions, and the device offers both visual and audible alerts for different moisture levels (low, medium, high). This feature is particularly useful for immediate assessment and quick action. The meter comes with extra stainless steel pins, a protective cap that doubles as a calibration checker, and a 9V battery, adding to its convenience and usability right out of the box.

There are minor drawbacks; the pin-type sensor requires insertion into the material, which could potentially damage delicate surfaces. Additionally, while the device is user-friendly, some users might find the need for calibration before use a bit cumbersome. It's best suited for homeowners, DIY enthusiasts, and professionals who need a reliable moisture detection tool. Its compact size and lightweight design make it easy to handle and store. The one-year warranty further adds to its credibility as a dependable tool in maintaining home safety.

The Protimeter SurveyMaster BLD5375 is a versatile moisture meter well suited for professionals needing reliable moisture measurement in drywall, wood, concrete, and more. Its dual-function design allows you to switch effortlessly between pin mode, which measures moisture inside materials, and non-invasive mode that scans surfaces without damage—great for checking sheetrock moisture without puncturing the wall. It offers accurate readings supported by automatic calibration and regular firmware updates, so you can trust the results over time. The larger, clear display improves readability on job sites, and the extended battery life means less downtime.

Bluetooth connectivity is a handy addition for saving and organizing readings with date and time stamps via a smartphone app, simplifying record keeping. User-friendly controls let you tailor features like auto shut-off and backlight to your preference, making it comfortable to use throughout the day. While it excels in advanced features, the price might be higher than basic meters aimed at casual users, and some may find the Bluetooth functions unnecessary if they prefer manual record keeping.

This moisture meter represents a robust choice for contractors, inspectors, or serious DIYers focused on precise moisture assessment in drywall and other materials.