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

It senses moisture through a painted surface.

Can this be used on concrete and drywall?

Yes, the device has four modes. Wall, masonry, soft wood, hard wood. Wall is 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.

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.

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.

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General Tools Pinless LCD Moisture Meter with Tricolor Bar Graph (MM8)

General Tools Pinless LCD Moisture Meter with Tricolor Bar Graph (MM8)

Product ID: 75454902

Details

Battery description
Alkaline
Brand
General Tools
Colour
White
Item weight
0.34 Pounds
Product dimensions
7.1W x 16H

📊3-color LED bar graph for instant moisture status

📏Non-invasive sensing up to 3/4 inch depth

🖐️Ergonomic handle for all-day comfort

Rp3053502

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Measure Smarter, Prevent Faster: The Ultimate Moisture Meter for Pros Who Can't Afford to Guess

USER CENTRIC DESIGN - Hi-visibility white-on-black LCD and ergonomic grip for effortless, clear readings
INSTANT VISUAL ALERTS - Tricolor LED bar graph and out-of-range alarms keep you ahead of moisture risks
MOLD PREVENTION POWER - Early moisture detection stops mold before it starts—protect your space and peace of mind
TAILORED MATERIAL SETTINGS - Custom modes for drywall, masonry, softwood & hardwood ensure spot-on accuracy
PRECISION MOISTURE DETECTION - Pinless capacitive tech reads moisture without damaging surfaces

The General Tools MM8 Pinless LCD Moisture Meter combines advanced non-invasive capacitive sensing with a tricolor LED bar graph and tailored settings for multiple materials. Its ergonomic design and high-contrast display deliver precise, easy-to-read moisture measurements up to 3/4 inch deep, empowering professionals and DIYers to detect moisture early and prevent costly mold and water damage.

Specifications

ASIN	B01BLXVDFA
Battery Description	Alkaline
Best Sellers Rank	293,449 in Garden ( See Top 100 in Garden ) 6,974 in Scanners & Testers 20,597 in Lawn & Garden Watering Equipment
Brand	General Tools
Colour	White
Customer Reviews	4.3 4.3 out of 5 stars (875)
Global Trade Identification Number	00681035017340
Included Components	Console^Battery (1)
Item Dimensions W x H	7.1W x 16H centimetres
Item Highlight	Non-invasive wood moisture meter for walls, drywall & lumber. Mold detector for home moisture & humidity moisture testing.
Item Type Name	---
Item Weight	0.34 Pounds
Lower Temperature Rating	32 Degrees Fahrenheit
Manufacturer	General Tools
Manufacturer Part Number	MM8
Model Number	MM8
Mounting Type	Surface Mount
Number of Items	1
Operating Humidity	5% to 95%
UPC	735090905002 681035017340
Unit Count	1.0 count
Upper Temperature Rating	104 Degrees Fahrenheit
Voltage	9 Volts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Rp3053502

Duties & taxes included

In stock

Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Indonesia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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1 month ago

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