--- product_id: 1096279 title: "- MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays" brand: "general tools" price: "Bs.915" currency: BOB in_stock: true reviews_count: 13 category: "General Tools" url: https://www.desertcart.bo/products/1096279-mmd4e-digital-moisture-meter-water-leak-detector-moisture-tester-pin store_origin: BO region: Bolivia --- # Measures moisture 5-50% wood, 1.5-33% building materials Audible & visual alerts for moisture levels Backlit LCD with 0.3" digits for easy reading - MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays **Brand:** general tools **Price:** Bs.915 **Availability:** βœ… In Stock ## Summary > πŸ’§ Don’t let hidden moisture ruin your space β€” detect it before it’s too late! ## Quick Answers - **What is this?** - MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays by general tools - **How much does it cost?** Bs.915 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/1096279-mmd4e-digital-moisture-meter-water-leak-detector-moisture-tester-pin) ## Best For - general tools enthusiasts ## Why This Product - Trusted general tools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Trusted Brand & Support:** General Tools offers replaceable pins and responsive customer service, ensuring long-term reliability. - β€’ **Proactive Mold Prevention:** Detect hidden water leaks early to protect your home and health from mold and mildew growth. - β€’ **Ergonomic & Portable Design:** Compact, one-hand size with hold function for convenient, on-the-go moisture testing anywhere. - β€’ **Precision Moisture Detection:** Pin-type sensor delivers accurate readings with Β±3% margin, essential for wood, drywall, and concrete. - β€’ **Instant Visual & Audible Alerts:** Backlit LCD and customizable tones keep you informed of low, medium, or high moisture levels at a glance. ## Overview The General Tools MMD4E Digital Moisture Meter is a professional-grade pin-type tester designed for contractors and homeowners to quickly and accurately measure moisture content in wood, drywall, and concrete. Featuring a backlit LCD with large digits, audible and visual alerts, and a broad detection range (5-50% for wood, 1.5-33% for building materials), it helps prevent mold and water damage. Compact and ergonomic, it includes replaceable stainless steel pins, a hold function, and comes with a 9V battery and 1-year warranty, making it an essential tool for smart home maintenance and renovation. ## Description Brand:General Tools Color:Grays Features: Moisture meter features an easy-to-read LCD display for quick and easy viewing; ergonomic size fits in one hand Ideal for contractors and homeowners to measure moisture content in wood, concrete drywall and subflooring; essential water damage tool Moisture detector has a wide and precise measuring range; stick the stainless steel pins into the surface of what you are measuring in order to get a read-out Never buy water logged wood again; woodworking tool measures the moisture content of wood before buying;Auto power off Can be used as a water leak detector after flood damage, or general water damages Publisher:General Tools Warranty:1 Year Details:General Tools MMD4E Moisture Meter, Pin Type, Digital LCD UPC:012301860924 EAN:0522536779064 Package Dimensions:9.0 x 5.4 x 1.2 inches ## Features - HUMIDITY SENSOR: Our handy meter tool can quickly determine what level of remediation is needed to keep your family safe from black mold. High levels of dampness that go untreated are the leading cause of harmful fungus growth in the home. - WATER LEAK DETECTOR: Finding the moisture content in your wood or drywall is the first step in early prevention. Continuously check and test suspicious water stains around the house so you can determine whether the area is wet or has already dried. Low, medium and high moisture tones and on-screen icons, Reading HOLD button - MOISTURE READER: The mold test features large 0.3" high digits in a backlit LCD for quick and easy detecting. Our mildew scanner includes extra 8mm stainless steel pins, a protective cap that doubles as a calibration checker, and a β€œ9V” battery. - MOLD TESTER: For an accurate test read, stick the stainless steel pins into the surface of what you're measuring. The gauge has a broad range of 5 - 50% for wood and 1.5 - 33% for building materials such as concrete and drywall. - GENERAL TOOLS: We're a recognized leader in designing and developing specialized precision tools dedicated to delivering exceptional customer service. We encourage artisans and DIYers to work smarter, measure better, and repair more productively. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00275F5O2 | | Battery Description | Alkaline | | Best Sellers Rank | #635 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Moisture Meters | | Brand | General Tools | | Brand Name | General Tools | | Color | Gray | | Customer Reviews | 4.5 out of 5 stars 15,046 Reviews | | Global Trade Identification Number | 00681035414477, 00885265551395 | | Included Components | Moisture meter, batteries, extra pins | | Item Dimensions W x H | 9.5"W x 1.4"H | | Item Type Name | Moisture Meter | | Lower Temperature Rating | 32 Degrees Fahrenheit | | LowerTemperature Range | 32 Degrees Fahrenheit | | Manufacturer | General Tools | | Model | MMD4E | | Mounting Type | Surface Mount | | Operating Humidity | Varied | | Part Number | MMD4E | | Product Dimensions | 9.5"W x 1.4"H | | Smart Home Compatibility | Not Smart Home Compatible | | Temperature Accuracy | 3 | | Temperature Reading Accuracy | plus_minus_3_degrees_fahrenheit | | UPC | 012301860924 716080037835 885312937219 885265551395 885367884865 681035414477 069060294668 031112659039 885898031110 522536779064 971483008299 031113382226 | | Unit Count | 1.0 Count | | Upper Temperature Range | 60 Degrees Celsius | | Voltage | 9 Volts | | Warranty Description | 1 Year | ## Product Details - **Battery Description:** Alkaline - **Brand:** General Tools - **Color:** Gray - **Lower Temperature Rating:** 32 Degrees Fahrenheit - **Product Dimensions:** 9.5"W x 1.4"H ## Images ![- MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays - Image 1](https://m.media-amazon.com/images/I/61+4TbrH9kL.jpg) ![- MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays - Image 2](https://m.media-amazon.com/images/I/813D+42EyRL.jpg) ![- MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays - Image 3](https://m.media-amazon.com/images/I/71Q-aRPDe4L.jpg) ![- MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays - Image 4](https://m.media-amazon.com/images/I/71yoz82hizL.jpg) ![- MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays - Image 5](https://m.media-amazon.com/images/I/91uSZDv0JAL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: accuracy** A: I found the stated range of error to be ambiguous. It was stated as being within 3% of the reading. But the units of measure of the reading are themselves in percent.So I wrote the following to the manufacturer, asking if I had a reading of, say, 10% did that mean the range of error was 9.97 - 10.03% or 7 - 13%.This was their reply:The accuracy is Β±(3% + 3 digits) as stated in the manual. To use your example, if the meter reads 10% then it is really between 7%-13%. The website will be updated accordingly. Thank you for bringing this to our attention and if there is anything else you have questions about, please feel free to contact us. **Q: Can I use this product to rule out a plumbing leak under my concrete bathroom floor. The outer bathroom wall is concrete & paint is bubbling.** A: It won't show thru the cement unless it is wet. Also is the wall an exterior wall & you could be getting moisture there. With the paint bubbling you do have a water problem from some where inside or out, but you could check with the tool on the inside in the wall real low next to the cement. It worked real well for my particular problem without tearing up the carpet to find my problem. Hope this helps. **Q: I have a wooden floor that is swelling little bit. I know I had a small water leak. Can this tool help me to check if there is moisture underneath?** A: ABSOLUTELY! This is just what you need, it tells you the exact moisture where the contacts touch the wood. There is a small button on the face right under the word GENERAL that allows you to pick wood or concrete. I use it on our Maple flooring in the summer to see where we are with water content. **Q: Will it measure moisture in drywall?** A: Yes. It has two features (1) Wood which I use on dry wall, wood, plastered walls, carpeting.. (2) Building material which I use on concrete floors, concrete blocks... I have found it works well on concrete and I can trace moisture in our basement floors which has helped to target where work needs to be done in outside grading. By the way I am a 78 year old woman and have had "fun" using this meter. Money well spent. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by H***I on July 13, 2010* ### ⭐⭐⭐⭐⭐ Review *by K***K on August 2, 2013* ### ⭐⭐⭐⭐ Review *by C***L on April 12, 2026* ## Frequently Bought Together - 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, Grays - Klein Tools ET140 Pinless Moisture Meter for Non-Destructive Moisture Detection in Drywall, Wood, and Masonry; Detects up to 3/4-Inch Below Surface - General Tools PIN3 Replacement Pins for MMD4E, RHMG650 and RHMG700DL Silver --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.bo/products/1096279-mmd4e-digital-moisture-meter-water-leak-detector-moisture-tester-pin](https://www.desertcart.bo/products/1096279-mmd4e-digital-moisture-meter-water-leak-detector-moisture-tester-pin) --- *Product available on Desertcart Bolivia* *Store origin: BO* *Last updated: 2026-05-03*