Check the listing for details. General Tools Digital Moisture Meter Model MMD4E. Condition: New. Listed at 69.48 USD. NEW, General Tools Digital Moisture Meter, Model MMD4E, 844319, Ideal to use in woodworking, building construction, agriculture restoration and floor-laying, Used to check wood, drywall and concrete before painting, sealing or treating, Locate and identify water leaks in roofs, floors & walls, Ergonomically designed and CE approved, General’s ultra-sensitive Digital Moisture Meter easily detects hidden leaks in wood, concrete, plaster and carpet. Providing accurate moisture level readings make this moisture meter great for new home inspections, locating roof leaks or even selecting dry lumber at the yard. Ideal to use in woodworking, building construction, agriculture restoration and floor-laying. Used to check wood, drywall and concrete before painting, sealing or treating and locate.