---
product_id: 29722681
title: "MM8"
brand: "general tools"
price: "€ 112.48"
currency: EUR
in_stock: true
category: "General Tools"
url: https://www.desertcart.es/products/29722681-mm8
store_origin: ES
region: Spain
---

# 3-color LED alerts for instant status Measures moisture up to 3/4" deep Low battery & out-of-range alarms MM8

**Brand:** general tools
**Price:** € 112.48
**Availability:** ✅ In Stock

## Summary

> 💧 Detect moisture like a pro—stay ahead, stay dry!

## Quick Answers

- **What is this?** MM8 by general tools
- **How much does it cost?** € 112.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/29722681-mm8)

## 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

- • **Smart Alerts:** 3-color LED bar graph and audible alarms keep you instantly informed of moisture levels and battery status.
- • **Ergonomic Design:** Comfort-fit handle and large backlit LCD ensure effortless use and clear visibility in any lighting.
- • **Pinless Precision:** Non-invasive sensing protects surfaces while delivering accurate moisture readings up to 19mm deep.
- • **Mold Prevention Power:** Early detection with out-of-range alarms helps you stop water damage and mold before it spreads.
- • **Multi-Material Mastery:** Calibrated settings for drywall, masonry, softwood, and hardwood for versatile, professional-grade detection.

## Overview

The General Tools MM8 Pinless Moisture Meter offers precise, non-invasive moisture detection up to 3/4" deep in wood, drywall, and masonry. Featuring a bright backlit LCD, 3-color LED alerts, and ergonomic design, it empowers professionals and DIYers to prevent mold and water damage with early, reliable readings. Trusted by experts, this tool combines innovation and ease-of-use for smarter moisture management.

## Description

You can always rely on our General Tools LCD Moisture Meter MM8 to give you the most accurate readings when measuring the moisture content in your basement, bathroom walls, and roof. Stop water damage and mold formation before it becomes problematic. Our tool features a hi-visibility white on black screen with LCD digits for easy readability from any angle. It also features an ergonomic construction and includes non-invasive sensing technology so that it won't scratch or mar the surface material. This handy device has separate out-of-range alarms for wood and building materials, and our humidity tester has colored green, yellow, and red LED visual alerts. It also features a hold function that freezes the reading so you can view it later.General Tools has been a recognized leader in the innovation, design, and development of specialized home inspector tools for many years. We encourage craftspeople, artisans, and DIYers to work smarter, measure better, and increase productivity.

## Features

- HUMIDITY METER: It's ideal for measuring the moisture content of wood and construction materials. It features separate settings for drywall, masonry, softwood, and hardwood and includes non-marring sensing technology that protects surfaces.
- EASY TO READ: This monitor features 2" (50mm) high backlit white LCD digits, auto-calibrating, a 3-color LED bar graph, and an audible alert accurate detection. The ergonomic handle design conforms to your hand for a comfortable user experience.
- WATER LEAK SENSOR: It has no pins and can read the levels up to 3/4" (19mm) deep into the surface with an overall measurement of 0 to 53% for softwood and 0 to 35% for hardwood. It provides relative readings for wallboard and masonry.
- DEEP DETECTION: Early prevention is vital when stopping mold formation. Check and test suspicious leak stains to determine if the area is wet or has already dried. It includes an out-of-range alarm and a low 9V battery alert.
- GENERAL TOOLS: We have been a recognized leader in the innovation, design, and development of specialized precision tools for many years. We encourage craftspeople, artisans, and DIYers to work smarter, measure better, and increase productivity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01BLXVDFA |
| Battery Description | Alkaline |
| Best Sellers Rank | #543 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Moisture Meters |
| Brand Name | General Tools |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (898) |
| Global Trade Identification Number | 00681035017340 |
| Included Components | Console^Battery (1) |
| Item Dimensions W x H | 2.8"W x 6.3"H |
| Item Highlight | Non-invasive wood moisture meter for walls, drywall & lumber. Mold detector for home moisture & humidity moisture testing. |
| Item Type Name | --- |
| Item Weight | 5.44 ounces |
| LowerTemperature Range | 32 °F |
| Manufacturer | General Tools |
| Model | MM8 |
| Mounting Type | Surface Mount |
| Number of Items | 1 |
| Operating Humidity | 5% to 95% |
| Part Number | MM8 |
| UPC | 735090905002 681035017340 |
| Unit Count | 1 Count |
| Upper Temperature Range | 104 °F |
| Voltage | 9 volts |

## Product Details

- **Battery Description:** Alkaline
- **Brand:** General Tools
- **Color:** White
- **Item Weight:** 5.44 ounces
- **Product Dimensions:** 2.8"W x 6.3"H

## Images

![MM8 - Image 1](https://m.media-amazon.com/images/I/71YeWu4f4XL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does it sense moisture through a painted surface or just the moisture content of the paint?**
A: It senses moisture through a painted surface.

**Q: Can this be used on concrete and drywall?**
A: Yes, the device has four modes.  Wall, masonry, soft wood, hard wood.  Wall is drywall.

**Q: Can this be used to locate a leak behind drywall. The drywall is not showing wetness so the water is probably running down a stud or outside wall.**
A: This tool will measure the moisture content of any building material including wood and drywall. If the test indicates a high moisture content in just one spot, you could probably conclude that there was a leak at that point.

**Q: Will this unit work on a plywood sub floor, and hardwood flooring to verify the hardwood has properly aclimated for installation?**
A: In order to get accurate readings you will need to make sure the two prongs on the top make contact with the area you wish to measure for moisture.  The two prongs are pretty small and the tips are sharp.  I was able to obtain readings on wet drywall, plywood and ceramic floor tile. As long as contact was made with the points it worked for me and the price is reasonable.

## Frequently Bought Together

- General Tools LCD Moisture Meter #MM8 - Leak and Humidity Detector - Pinless and Non-Invasive
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**Shop now:** [https://www.desertcart.es/products/29722681-mm8](https://www.desertcart.es/products/29722681-mm8)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-09-15*