General Tools MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Graysp>The General Tools MMD4E Pin-Style Digital Moisture Meter provides accurate moisture level reading to detect leaks, dampness and moisture in wood, walls, ceiling, carpet and firewood. It is an essential tool for assessing water damage and remediation efforts after flooding from storms, hurricanes, roof leaks or broken pipes to discover hidden water damage in floors, walls and under carpets. By checking suspicious water stains with a moisture tester around the house, you can determine whether the area is wet (a perfect breeding ground for mold) or has long since dried. This water leak detector also is helpful for new home inspections and home restorations, locating roof leaks or simply to ensure firewood is ready to burn. It also ensures the appropriate level of surface dryness before painting, sealing or treating wood or drywall. The moisture meter is easy to use: simply stick the stainless steel pins into the surface of what you are measuring in order to get a read-out. Overall measurement range of 5 to 50% for wood and 1.5 to 33% for building materials. The backlit, large, easy-to-read digits and clearly-designed LED alerts tell you immediately if the moisture content is high, medium or low. Plus, the moisture meter has audible high, medium, low alerts so you will be able to hear the level even if you are in a dark or awkward space where you can?t see the screen. The sturdy, ergonomic shape and rubber side grips allow for comfort even when using for multiple measurements. Every moisture meter also feature a hold function to freeze a reading to read later, auto power off and a low battery indicator. Every package includes extra 0.3 in. (8mm) stainless steel pins, a protective cap that doubles as a calibration checker and a ?9V? battery.SPECIFICATIONS ? Measurement ranges: 5 to 50%WME (Wood Moisture Equivalent) for wood, 1.5 to 33% for building materials ? Moisture measurement accuracy/resolution: ±3%/0.1% ? Pin length: 0.3 in. (8mm) ? Wood moisture scales: 5 to 11.9% (low); 12 to 15.9% (medium); 16 to 50% (high) ? Building materials scales: 1.5 to 16.9% (low); 17 to 19.9% (medium); 20 to 33% (high) ? Display size and type: 99.9 count backlit LCD with 0.3 in. (8mm) high digits ? Auto power off: After 3 minutes of inactivity ? Dimensions: 6.0 x 2.6 x 0.8 in. (152 x 66 x 20 mm) ? Weight: 3 oz. (86g) ? Power source: "9V" battery (included) GENERAL TOOLS - THE PRECISE TOOL FOR DOING THE JOB EXACTLY RIGHT. Offering over 1,000 tools, we?re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools.For inquiries, please contact our Customer Service Department at 212-431-6100. We strive to provide our customers with 100% satisfaction.WORK SMARTER, MEASURE BETTER & BE MORE PRODUCTIVE WITH GENERAL TOOLSSperry Instruments GFI6302 GFCI Outlet / Receptacle Tester, Standard 120V AC Outlets, 7 Visual Indication / Wiring Legend, Home & Professional Use, Yellow & BlackTests standard 3-wire and GFCI protected 120V outlets for 7 common wiring errors. GFCI function tests GFCI and standard outlets wired in series with GFCI outlets (e.g. multiple outlets in kitchen or bath). Neon lamps indicate 7 common wiring conditions with the wiring condition legend easily visible on top and bottom of tester. Tester offers a compact ergonomic design with over-molded rubber grips. UL/CAS/Intertek, CAT III 300V Operational Voltage Range: 120V AC Frequency: 60Hz