General Tools Digital Moisture Meter MMD7NP - Humidity Sensor- Pinless and Non-Invasive

My laundry room flooded and I'm replacing the flooring. The moisture is in the sub flooring - along with the existing flooring. The floor company told me to buy a moisture reader to monitor the sub floor, because they cant install replacement/new flooring until the reading is less than 5%. When I first got this reader it was over 50% on the sub floor, so I have been using heaters and fans. Now it is down to 25% - but the best thing is... I know nothing about flooring or moisture or how to use moisture readers, but this is super intuitive and easy to use. > Just hit one button to tell it what material it is "wall, hardwood, softwood", etc. then it's super easy - just lay the reader where you want it to read and it does the rest. > Seems very accurate. If i test, then re-test again, readings stay consistent. > Would be easy to locate a leak. You really do just run it over surfaces and it will change in real time. I personally dont have an active leak, but this is accurate and can pin point areas that are more moist than others. > In the video - the sub floor is less moist than the flooring that was soaked and is still installed. You can see how it detects different moisture levels in different areas. Very nice way to monitor as moisture levels go down. > OVERALL - so happy I went with this model, even though I was comparing it with a couple others that were a little cheaper. This one works VERY VERY well.. that's all that is important when your in a situation where you need one of these. If you buy a cheaper one, that may not be as accurate - you will be kicking yourself later when your entire project is up in the air and your going to spend that extra $10 at Starbucks because your stressed out and need coffee :)

Very effective tool for measuring moisture. Helped us find the area our leak was in. Delivered within hours

This may not be the most precise sensor but it is accurate at being able to locate the source of a potential leak or at least tell you if there is an underlying problem. I like that it is non penetrating so it doesn't leave any damage to the walls or ceilings. I've successfully used it to help find water leaks/damage in drywall walls & ceilings (including textured) and also PLAM (laminate) countertops. It helped confirm that a section of counter was actually water damaged and not a fabrication error or other damage, which lead to thankfully finding the source of the leak.

very pleased. bought it to check out houses as we were looking to buy one. simple to operate, seems to be good quality. and the AI questions sections on this Amazon website help explain a lot about its operation. My only quibble is that the LED screen is sometimes difficult to read from certain angles, but using the AI questions I just learned that that’s what the “hold” button is for! (place the unit to get a reading, pull it out while holding the hold button, and the screen retains the reading!). RTFM I guess. oh, also it’s important to keep the sensor area protected and clean.

Great for the price....have purchased several of this particular meter and others of this brand....they have been great and easy to use and read.

I can not read the display unless i am directly in front of it. To read high and low place's i must either lay on the floor or step on a ladder. Other than this issue the meter seems to work. I also noticed if you rotate the meter while reading helps to read the display in angles or reaching high or low. The numbers start disappearing in different angles. So you must rotate the meter while sliding across the surface of the wall to see it clearly.

Great product.

Does a good job after learning how to run it. Has different settings for different types of surfaces.