Finding moisture is the first step in early mold prevention. High levels of moisture that go untreated are the main cause for harmful mold growth in the home. With the MMD4E moisture meter, use the pin sensors to find the moisture content in your wood or drywall. This will help you know if you need to dry the existing materials or replace with brand new ones. Quickly determine what level of remediation is needed to keep your family safe with the MMD4E moisture meter by GENERAL Tools.