








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






| ASIN | B00275F5O2 |
| Battery Description | Alkaline |
| Battery description | Alkaline |
| Best Sellers Rank | #2,093 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 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 14,501 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 |
| Mounting Type | Tabletop |
| Mounting type | Tabletop |
| Operating Humidity | Varied |
| Product dimensions | 24.1W x 3.6H centimeters |
| Temperature Accuracy | 3 |
| 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 |
A**E
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 .
S**I
مقص الاغنام لم يصلني ولم استلم المبلغ المدفوع
شكرا
M**I
Bad product
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.
B**M
It’s working great
Only issue is the pins they bend fast when used on wood
A**A
No functioning properly
Not functioning properly
N**R
wonderfull
i used this devise in my house it showed me the cause that was a leak inside the wall
Trustpilot
3 days ago
2 weeks ago