Check the listing for details. General Tools LED Display Moisture Meter Model MM1E. Condition: New. Listed at 31.48 USD. NEW, General Tools LED Display Moisture Meter Model MM1E, 413429, LED Display, Ideal for selecting dry lumber, Operating Environment: 32 to 122 degrees, Includes protective cover, battery and instruction manual, Ideal for use in woodworking, building construction and agriculture. Meter is also used in the restoration business to check for moisture in carpets and sub-flooring. LED Display. Check wood, drywall and concrete before painting, sealing or treating. Locate and identify water leaks in roofs, floors and walls. Ideal for selecting dry lumber. Great for home owners, contractors and inspectors. CE and RoHS approved. Includes protective cover, battery and instruction manual. Display: Progressive LED, Range: 8-22 percent, Resolution: 0.1 percent, Accuracy: +/-2 percent, Sampling Rate: 1s.