---
product_id: 253296938
title: "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"
brand: "general tools"
price: "€ 63.12"
currency: EUR
in_stock: true
reviews_count: 11
category: "General Tools"
url: https://www.desertcart.de/products/253296938-general-tools-mmd4e-digital-moisture-meter-water-leak-detector-moisture
store_origin: DE
region: Germany
---

# 5-50% wood moisture range 8mm stainless steel pins Backlit 0.3" LCD display 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

**Brand:** general tools
**Price:** € 63.12
**Availability:** ✅ In Stock

## Summary

> 💧 Detect moisture before it detects you – stay mold-free and damage-proof!

## Quick Answers

- **What is this?** 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 by general tools
- **How much does it cost?** € 63.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/253296938-general-tools-mmd4e-digital-moisture-meter-water-leak-detector-moisture)

## 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

- • **Durable & Ready to Use:** Includes extra stainless steel pins, protective calibration cap, and a 9V battery for immediate, reliable operation.
- • **Trusted Industry Leader:** From General Tools, a brand synonymous with precision and professional-grade home improvement solutions.
- • **Precision Moisture Detection:** Pin-type sensor delivers accurate readings from 5% to 50% moisture in wood and 1.5% to 33% in drywall and concrete.
- • **User-Friendly Backlit Display:** Large 0.3-inch digits on a backlit LCD ensure quick, clear readings even in dimly lit spaces.
- • **Instant Visual & Audible Alerts:** High-medium-low moisture alerts keep you informed in real-time, preventing costly water damage and mold growth.

## Overview

The General Tools MMD4E Digital Moisture Meter is a professional-grade pin-type moisture tester designed for quick, accurate detection of moisture levels in wood, drywall, and concrete. Featuring a backlit LCD with large digits and audible/visual alerts, it empowers homeowners and professionals to identify water leaks and prevent mold growth early. Equipped with durable stainless steel pins, a calibration cap, and powered by a 9V battery, this compact, lightweight tool is a must-have for maintaining safe, dry environments.

## Description

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 : desertcart.ae: Tools & Home Improvement

Review: Very good - Very useful and we found something not new damage in the wall we can’t see it but with this we discover it .
Review: شكرا

## Features

- Humidity sensor: our handy meter tool can quickly determine what level of remediation is needed to keep your family safe from black mold
- Water leak detector: finding the moisture content in your wood or drywall is the first step in early prevention
- 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 “9v” 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00275F5O2 |
| ASIN  | B00275F5O2 |
| Batteries | 1 Product Specific batteries required. (included) |
| Batteries  | 1 Product Specific batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Best Sellers Rank | #622 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Moisture Meters |
| Color | Gray |
| Country of origin  | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (14,488) |
| Customer reviews | 4.5 4.5 out of 5 stars (14,488) |
| Date First Available | 11 August 2012 |
| Date First Available  | 11 August 2012 |
| Department  | Unisex Adult |
| Included components | Moisture meter, batteries, extra pins |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 159 g |
| Item model number | MMD4E |
| Item model number  | MMD4E |
| Manufacturer | General Tools |
| Manufacturer  | General Tools |
| Material | Wood |
| Measurement System | Metric |
| Part number | MMD4E |
| Pattern | Digital Moisture Meter |
| Plug Profile | Tabletop |
| Power source type | Battery Powered |
| Product Dimensions | 14.1 x 24.13 x 3.56 cm; 159 g |
| Product Dimensions  | 14.1 x 24.13 x 3.56 cm; 159 g |
| Shape | Drywall |
| Size | Pin Type |
| Specific uses | Inside; Amateur, Inside; Professional |
| Style | Digital Pin Type, Visual & Audible Alerts |
| Voltage | 9 Volts |
| tech_spec_battery_description_toys | Alkaline |

## Product Details

- **Battery description:** Alkaline
- **Brand:** General Tools
- **Colour:** Gray
- **Lower temperature rating:** 32 Degrees Fahrenheit
- **Product dimensions:** 24.1W x 3.6H centimeters

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61+4TbrH9kL.jpg)

## 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 ±(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

### ⭐⭐⭐⭐⭐ Very good
*by A***E on 7 December 2025*

Very useful and we found something not new damage in the wall we can’t see it but with this we discover it .

### ⭐⭐⭐⭐⭐ Review
*by S***I on 11 December 2025*

شكرا

### ⭐ Bad product
*by M***I on 7 April 2025*

The item was received in bad condition. It’s clear that the wrapping had been opened before it was sent to me. It appears as though someone used it and then rewrapped it—poorly.

## 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
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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-23*