

💧 Detect the unseen. Protect your space like a pro.
The Klein Tools ET140 Pinless Moisture Meter offers professional-grade, non-destructive moisture detection up to 3/4-inch deep in drywall, wood, and masonry. Featuring material-specific modes, a bright reverse-contrast display with LED indicators, and rugged 2m drop protection, it’s a ready-to-use kit including a 9V battery. Trusted by pros since 1857, this tool empowers managers and DIYers alike to uncover hidden moisture issues quickly and confidently.















| ASIN | B07SZX8QXH |
| Batteries | 1 9V batteries required. (included) |
| Battery Description | 1 x 9V |
| Best Sellers Rank | #1,511 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Moisture Meters |
| Brand | KLEIN TOOLS |
| Color | Moisture Meter |
| Date First Available | June 11, 2019 |
| Department | Unisex Adult |
| Global Trade Identification Number | 00092644692734 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7 ounces |
| Item model number | ET140 |
| Manufacturer | Klein Tools |
| Mounting Type | Freestanding |
| Operating Humidity | 30-70% relative humidity |
| Product Dimensions | 2.5"W x 1"H |
| Temperature Accuracy | 0.3 degrees_celsius |
| Temperature Reading Accuracy | plus_minus_0_point_3_degrees_celsius |
| UPC | 092644692734 |
| Upper Temperature Rating | 40 Degrees Celsius |
| Voltage | 9 Volts |
A**N
Necessary and super helpful narrowing down what is inside of your walls.
I purchased this to detect moisture inside of my home. It works great and is a simple tool for even a basic DIYer. The device is easy to read, the brightness of the display is just right...especially in dark places. The price is good, given that Klein is a very reputable brand with quality tools. I was able to scan all of my walls and detected another area of high moisture that I was unaware of....unfortunately! Definitely a useful device to see what is happening on the inside of your walls.
A**G
Yes!
Works just as it should!!! Buying a new house and after paying an arm and a leg for an inspector to miss everything, I bought my own tools and find water damage that was missed! Sooo easy to use, very specific when it comes to what you’re testing, the range of moisture, gives results bright and fast. Great tool to have!
E**I
Accurate and easy to use for quick moisture checks
I’ve been using this Klein moisture meter for checking drywall and wood around the house, and it’s been spot on. It’s simple to use — just place it flat and the reading shows up instantly on the bright display. I like that it scans without leaving pinholes, and it feels sturdy but lightweight in hand. The detection is accurate enough for quick checks, though it does better on flat surfaces than corners. For homeowners or anyone doing inspections, this is a reliable tool that saves time and gives peace of mind.
J**N
Handy to have in case you had a leak.
It seemed to work pretty well but how do you really know. It did detect moisture behind the drywall where I had a leak but other areas like around dry window frames seem to treat higher than I thought they should.
D**R
Nice to have an accurate reading
Works perfect especially for the price. Easy to read screen. Easy to use. Accurate instructions and gives you a sense of relief knowing there are no leaks.
D**M
Quality tool
This a great tool, easy to use and very accurate
M**M
Moister detection tool
This tool is a must for a unknown water leak location ,this tool zeros in exact site of moister coming in, works great on masonite sheet rock wood, whatever the material
M**A
Easy to use
Should have bought this long ago. Works great
R**N
Seems to be a great moisture meter. I believe it's accurate and the readings are consistent. Before and after planing shows a difference of .4% which proves this meter was worth the money. It also works great for other materials. Would recommend.
O**I
Works as advertised. Comparing this with a pinned model (half the price) that a neighbour borrowed and never returned Pros: - Multiple modes for different materials - Easy to use - Accurate, clear readings - Pinless Cons: - Uses 9V battery - Price (even on sale)
M**O
É muito bom, conferido com o detetor de umidade da Flir e ele fez a mesma detecção. Esses tipos de medidores não marcam a umidade absoluta e sim a umidade relativa, é necessário fazer o mapa de detecção. O aparelho tem um ótimo custo benefício, engenheiros diagnósticos podem apostar no aparelho, é durável mas, não tem assistência no Brasil, se quebrar, compra outro. Eu recomendo e uso.
R**N
Habe ich gekauft für mein Wohnmobil und damit Feuchtigkeit am großen Panoramafenster (Dichtung) entdeckt, von Werkstatt bestätigt. Bisschen teuer, aber wahrscheinlich seinen Preis wert.
J**E
I don't know how this tool works, but it's magic. It is very easy to use and causes no damage to the surface being tested. The hardest part of using this tool is finding a flat surface that fits the entire unit. Most of the time that's not a big deal because floors, walls, wooden boards etc. are pretty flat. My challenge was with crown mouldings. The sensor is a small patch on the back of the meter, but to get the sensor to lie flat on the wall you need the entire unit to lie flat. Fortunately this is easier to use than a stud sensor because you just need to find some orientation that gets a portion of the sensor into contact with your surface of interest. In addition, you can see the readout change as you approach the surface so you can tell how well you are doing. Measuring the moisture level of a dry area helps to determine if you are getting good enough contact to the region of interest. For my need this was much better than a pin type meter because it did not drive any holes or pinpricks into the surface of my walls. Because it causes no damage I was able to test many areas to determine what dry was before getting to the area of concern. I definitely would not have done that if it meant putting little holes into the wall.
Trustpilot
1 month ago
3 weeks ago