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Your cart is empty. 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.
Gregg T.
Reviewed in the United States on March 3, 2025
Works fine
ivan erick
Reviewed in the United States on February 8, 2025
It seems to me that the results are not very precise, they vary a lot with other instruments of greater precision, if I put them in direct contact with a surface such as dry concrete, 80% humidity appears, I do not know if the measurement should be done without touching the surface and depending on the distance the results vary, there is no manual for performing a correct measurement method.
C. Wilson
Reviewed in the United States on January 4, 2025
We recently had a plumbing leak that resulted in water under the flooring and also in the drywall. We had professional mitigation come to dry everything. The noise of multiple large fans and dehumidifiers was overpowering and we were anxious to have the process finished. We ordered this moisture meter so we could judge the progress ourselves. I feel that it definitely helped shorten the process because we could be confident that the walls were dry. The meter functioned quickly and accurately. It was easy to understand the readings.
Avital Kelman
Reviewed in the United States on January 30, 2025
Cool device that tells you if there's moisture in your walls. If you own a home this is a mist have. It reads instantly and still works great.
owner of product
Reviewed in the United States on January 19, 2025
The one day I needed it when I had a leak on my roof, the screen didn't work. I've replaced it with 3 different batteries. It works, but now I can't tell what mode I'm in. A tool should not break this early.
Donr827
Reviewed in the United States on December 15, 2024
The meter will work on most surfaces but it is not a complete answer.
TLM property management
Reviewed in the United States on April 26, 2024
This meter is so simple to use, there are no prongs that can damage your finished walls or trim, I had a leak between the interior and exterior walls of my home that I had been trying to find for weeks and within minutes thanks to my new moisture meter it was detected and the source was found also, I highly recommend this product
Paulina C.
Reviewed in Mexico on July 28, 2023
Buen tamaño y diseño.
karen knight
Reviewed in Canada on March 7, 2023
Works great better than the one I bought from the hardware store
Abdulla
Reviewed in the United Arab Emirates on February 27, 2023
ممتاز وعملي وافادني لمعرفة موقع تسريب الماء.
Customer
Reviewed in the United Kingdom on November 20, 2022
Use this on any surface and the readings will be high. Compared against a probe type its a mile out.Completely useless.
Christian
Reviewed in the United States on November 18, 2022
This is a great little moisture reader.I have tried other models and they give you some numbers and different modes for different types of material but what do you do with the numbers??? what is a "normal" reading? etc...I used this to detect possible leaks in the walls.Most moisture meters out there tend to specialize for measuring moisture in wood and various material.This one works really really well for regular dry wall!You drag it slowly along the wall near areas where you suspect there might be a leak.For my part, it discovered that while there was no pipe leak, there WAS a lot of wicking moisture from the grout in the shower to the backing drywall material (an old shower without a waterproof membrane).The meter was VERY clear. In most area, it would show 0% moisture. As I approached the shower, it gradually increased all the way to 100%... There is also a color scale indicator (from green (OK) to RED... bad/wet!). And once you pass a certain level of moisture, the meter will also beep!Like I said... NO AMBIGUITY with this device.It will tell you in simple terms: You are OK or HEY! There is excess moisture in this wall!Verdict: GET IT!Get it if you suspect moisture or water leak in a wall.At about 20% moisture, you may start having some mold in the wall.This meter is affordable... it's worth having one on hand!
Patrick C.
Reviewed in Singapore on May 2, 2021
Reasonably useful moisture meter for wood, not so much for concrete/brick/drywall
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