General Tools MM1E Pin-type LED Bar Graph Moisture Meter.

The General Tools MM1E Moisture Meter dual-range unit is perfect for checking moisture in carpets and sub-floors; analyzing wood, concrete or drywall before painting or wallpapering; or locating leaks in roofs, floors or walls. The MM1E measures moisture in two ranges (7 to 15% WME and 16" to 35% WME) on its easy-to-read bar graph with an accuracy of +/-1%. Whether you're a professional contractor or a conscientious home owner, Generals ultra-sensitive Moisture Meters help you to easily detect hidden leaks in wood, concrete, plaster and carpet. Available as both analog and digital models, the Meters provide accurate moisture level readings and are great for new home inspections, locating roof leaks or even selecting dry lumber at the yard.