---
product_id: 253296938
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: "1525 DH"
currency: MAD
in_stock: true
reviews_count: 11
category: "General Tools"
url: https://www.desertcart.ma/products/253296938-mmd4e-digital-moisture-meter-water-leak-detector-moisture-tester-pin
store_origin: MA
region: Morocco
---

# 8mm stainless steel pins for precise moisture detection 0.3" backlit LCD digits for clear readings Audible & visual alerts for moisture levels 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:** 1525 DH
**Availability:** ✅ In Stock

## Summary

> 🔍 Detect moisture before it detects you — stay mold-free and worry-free!

## 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?** 1525 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/253296938-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

- • **Ready to Use:** Includes extra pins, protective calibration cap, and 9V battery for immediate, reliable operation.
- • **Smart Alerts:** Audible and visual high-medium-low moisture alerts keep you ahead of potential mold risks.
- • **Instant Clarity:** Large backlit LCD with 0.3" digits ensures quick, easy-to-read measurements anytime.
- • **Pinpoint Precision:** Stainless steel pins deliver accurate moisture readings in wood, drywall, and concrete.
- • **Versatile Detection:** Broad moisture range (5-50% wood, 1.5-33% building materials) for comprehensive home safety checks.

## Overview

The General Tools MMD4E Digital Moisture Meter is a professional-grade pin-type moisture tester featuring an easy-to-read backlit LCD, precise 8mm stainless steel pins, and audible/visual alerts. Designed for detecting moisture in wood, drywall, and concrete, it helps prevent mold growth by identifying hidden water damage early. Compact and ready to use with included extras, it’s a must-have tool for proactive home maintenance and safety.

## Description

From the manufacturer Water Damage is the First Sign of Mold Finding moisture is the first step in early mold prevention. High levels of moisture that go untreated are the main cause for harmful mold growth in the home. With the MMD4E moisture meter, use the pin sensors to find the moisture content in your wood or drywall. This will help you know if you need to dry the existing materials or replace with brand new ones. Quickly determine what level of remediation is needed to keep your family safe with the MMD4E moisture meter by General Tools! Measure Moisture in Various Materials including Drywall, Hardwoods and Softwoods

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: مقص الاغنام لم يصلني ولم استلم المبلغ المدفوع - 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 |
| Battery Description | Alkaline |
| Battery description | Alkaline |
| Best Sellers Rank | #10,951 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Moisture Meters |
| Brand | General Tools |
| Brand Name | General Tools |
| Color | Gray |
| Colour | Gray |
| Country Of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 14,722 Reviews |
| Global Trade Identification Number | 00681035414477, 00885265551395 |
| Included Components | Moisture meter, batteries, extra pins |
| Item Dimensions W x H | 24.1W x 3.6H centimeters |
| Item Type Name | Moisture Meter |
| Lower temperature rating | 32 Degrees Fahrenheit |
| LowerTemperature Range | 32 Degrees Fahrenheit |
| Manufacturer | General Tools |
| Model | MMD4E |
| Mounting Type | Tabletop |
| Mounting type | Tabletop |
| Operating Humidity | Varied |
| Part Number | MMD4E |
| Product dimensions | 24.1W x 3.6H centimeters |
| Temperature Accuracy | 3 |
| Temperature Reading Accuracy | plus_minus_2_degrees_celsius |
| UPC | 012301860924 716080037835 885312937219 885265551395 885367884865 681035414477 069060294668 031112659039 885898031110 522536779064 971483008299 031113382226 |
| Unit Count | 1 Count |
| Upper Temperature Range | 60 Degrees Celsius |
| Voltage | 9 Volts |

## 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

![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)

## Available Options

This product comes in different **Color, 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 ±(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 .

### ⭐⭐⭐⭐⭐ مقص الاغنام لم يصلني ولم استلم المبلغ المدفوع
*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
- General Tools PIN3 Replacement Pins for MMD4E, RHMG650 and RHMG700DL Silver

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-08-05*