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General Tools MMD7NP Moisture Meter, Pinless, Digital LCD with Tricolor Bar Graph

General Tools MMD7NP Moisture Meter, Pinless, Digital LCD with Tricolor Bar Graph

Q: Does it sense moisture through a painted surface or just the moisture content of the paint?

It senses moisture through a painted surface.

Q: Can this be used on concrete and drywall?

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.

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?

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.

4.4/5

Product ID: 148753909

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Details

Brand
General Tools
Item Weight
0.25 Pounds
Voltage
9 Volts
Manufacturer
General Tools
UPC
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📊Tricolor LED bar graph for instant visual alerts

📏3/4 inch deep moisture detection

🔕Pinless design protects surfaces

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Description

💧 Detect moisture like a pro—no damage, no guesswork, just precision.

READY TO GO - Includes 9V battery, auto power-off, low battery alert—professional-grade convenience out of the box.
DEEP DETECTION - Reads moisture up to 3/4 inch deep, perfect for softwood, hardwood, drywall, and masonry.
PINLESS PRECISION - No pinholes or damage—preserve your pristine surfaces while detecting moisture accurately.
USER FRIENDLY DISPLAY - Backlit 2-inch LCD with auto-calibration and hold function for effortless readings anytime.
VISUAL AUDIBLE ALERTS - Tricolor LED bar graph plus high-pitch tones pinpoint moisture hotspots instantly.

The General Tools MMD7NP is a pinless digital moisture meter featuring a backlit LCD and tricolor LED bar graph for quick, accurate moisture detection up to 3/4 inch deep in various building materials. Its non-invasive design protects surfaces from damage, while audible alerts and auto-calibration enhance usability. Lightweight and battery-powered, it’s a must-have for professionals ensuring quality and durability in construction and restoration projects.

Specifications

Brand	General Tools
Item Weight	0.25 Pounds
Voltage	9 Volts
Manufacturer	General Tools
UPC	021113026145 681035015834 753248093142 031113198551 080000324931 044905098113 069060295955 971485411967 079531646414
Global Trade Identification Number	00681035015834
Country of Origin	USA
Item model number	MMD7NP
Product Dimensions	2.87 x 7.62 x 16.51 cm; 113.4 g
ASIN	B00HARYVUQ

Have a Question? See What Others Asked

Does it sense moisture through a painted surface or just the moisture content of the paint?

Can this be used on concrete and drywall?

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.

Will this unit work on a plywood sub floor, and hardwood flooring to verify the hardwood has properly aclimated for installation?

Reviews

4.4

All from verified purchases

S**R

Trustworthy performance

Good product. I bought two pieces later. Good performance.

13.04.2025

A**R

Can this meter read from 1mm to 20mm of softwood

Very good product. Working accurately

10.12.2021

M**N

Detector not a longlife

Not better results

7.12.2021

A**I

poor quality.

product not measuring the moisture of wood at all different modes. not satisfied with the quality of the product. avoid.

30.01.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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