Price: $41.97
(as of Apr 06, 2025 06:37:42 UTC – Details)
Klein Tools ET140 Moisture Meter is designed to non-invasively detect hidden moisture content up to 3/4-Inch (19 mm) depth. Easily select between materials with mode button to test surface of drywall, masonry, hardwood, and softwood. The ET140 has easy viewing with bright, reverse-contrast display and LED bar graph. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn’t just the name of our company, it’s also our family name. And since we’re an American company that’s family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn’t just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.
Is Discontinued By Manufacturer : No
Product Dimensions : 6 x 2.5 x 1 inches; 5.93 ounces
Item model number : ET140
Department : Unisex Adult
Batteries : 1 9V batteries required. (included)
Date First Available : June 11, 2019
Manufacturer : Klein Tools
ASIN : B07SZX8QXH
Country of Origin : China
WATER LEAK DETECTOR detects relative moisture content from leaks and flooding
PINLESS MOISTURE METER measures relative moisture content in building materials
NONDESRUCTIVE DETECTION up to 3/4-Inch deep using Electromagnetic field (EMF) technology
USE ON DRYWALL, MASONRY, HARDWOOD, AND SOFTWOOD; calibrated for these materials only
REVERSE-CONTRAST DISPLAY for easy viewing of reading and nine LED bars to indicate moisture range
FULL FEATURE TOOL includes hold, low battery, and auto-power off functions
COMPLETE MOISTURE METER KIT includes meter with 2m drop protection, 9V battery, and instruction manual
Customers say
Customers find the moisture meter works well on all surfaces, is easy to use, and provides quick readings that can be taken at multiple points. They consider it a valuable tool that saves time and money, with one customer noting it’s particularly useful for maintenance work. The accuracy and build quality receive mixed reviews – while some find it extremely accurate and rugged, others report readings that are off by 10-12% and describe it as cheaply made.
CLP –
Simple to use and seems accurate
It is very simple to use. Just turn it on and select the material you are testing. You can select masonry, hardwood, softwood, drywall. Selecting the correct material is important. You can push the hold button to lock a reading incase you are testing an area where you can’t see the display. Screen is large and easy to read and the lights below the screen indicate if moisture reading is high or low based on the material you have the meter set for. It’s a good product in my opinion. Also I had someone test a building for moisture and that is the meter they used and told me they have used for years. That is why I decided to purchase this product. I have several other Klein products and have been happy with all of them.
Mike H. –
Good product
Quality sensor. Consistently accurate readings on all surfaces it’s rated to test. Easy to use.
JMan –
Good product
Very good item. i feel it’s far mor accurate than my other Pinned meters.
JJ –
Super easy to use
We rented out our house for the last 15 years while I was overseas. I recently remodeled the bathrooms, recently the one bathroom always smells damp. The last thing I wanted to do was tear up the bathroom again. I decided to try this moisture detector. It came fast, had a good price and is really easy to use. But I kept wondering if it is actually accurate.I did a video that shows everything below.I decided to do some tests with it. It has 2 meters, one shows you the percent of moisture and the other is a green to red/dry to wet moisture indicator. It also has four different modes; drywall, masonry, hardwood and softwood.First I set it on the drywall mode and tried it out on my wall. The moisture indicator didn’t register at all and it showed anywhere from 1% to 5%. This seemed like quite a range and had me wondering if 5% was good or bad. I knew I needed to test a couple of scenarios. I got a piece of scrap drywall and filled a bowl with water. I put the drywall over the bowl of water, this gave me a reading that was less than 1% and still didn’t register on the moisture indicator. This had me thinking maybe a 5% reading is bad. But, I am willing to try anything before I tear into the drywall to find out there is no moisture.Next, I poured a small pool of water on the floor and laid the drywall right on top of it. With the meter on the drywall which is sitting on the pool of water, it gave me a 6% reading but still didn’t register on the moisture indicator. Again, now I am really starting to think I may be tearing into some walls.At this point my drywall is wet and I need to clean up the water I dumped on the floor. I soaked the water up with the drywall piece then tested it again. I put the moisture meter directly on the part that was in the water. It now showed 25% and 2 green bars on the moisture indicator. I didn’t let the drywall really soak up the water and it read at 25%.I now see that a low reading isn’t really detecting any water damage maybe just a little bit of moisture. At 25% there is definitely some moisture or water. I would recommend this to anyone who thinks they may have a water leak prior to cutting into the floor or drywall.Feel free to check out my video.
Amazon Customer –
Works great on typical drywall covered ceilings.
It works great! I was able to scope the area of moisture on the ceiling drywall. This gives me great confidence that the correct area above was sealed. And it tells me where I need to start removing drywall. Very pleased. I saw a video review that completely misread the depth spec in drywall. The reviewer misread the spec for depth of 3/4”. He thought it meant the drywall had to be at least 3/4” thick when in fact it will work from 0-3/4” thick drywall.
KlausRox –
Easy to use Results
Water spots appeared on the bathroom ceiling that sent me into panic mold mode. I scheduled a Home Contractors Company to come out and take a look. Inquiring from the Service guy I learned there’s actually a tool for testing moisture levels and in my oh my god it’s mold mind I immediately had to have one of my own. I started reading product reviews and Handy Man testing reviews. This Klein model is rated most accurate at a much lower price. Easy to use with clear accurate results. I am so relieved that I myself are now able to detect any moisture causing mold problems before it happens. Most other products can only do this test by puncturing 2 holes in each and every area you want to test. Thankfully I can avoid having to repair drywall by testing throughout the entire house. I am not tech savy at all and can use this as easy as using a thermometer! Compared against the Service Companies testing device it was spot on accurate to a .001 difference in sensitivity. At about the size of a cell phone with large Lcd viewer results screen a simple 3 button user interface and accuracy it’s a must have. Thankfully it’s made of a thick molded plastic to withstand the multiple times I’ve dropped it already. I would recommend every Household concerned about mold purchase this product.
Justin –
Accurate and Easy-to-Use Moisture Meter!
The Klein Tools ET140 Pinless Moisture Meter is a great tool that works well in detecting moistures non-destructively. It’s very easy to use, quick readings, accurate for drywall and other materials. Moreover, the pinless part is huge with regard to not damaging anything while testing. Light, portable, typical of Klein Tools’ quality—this has made home inspections or DIY projects so much smarter; a tool really worth 5 stars!
Carrie Pritchard –
great product and shipping
I live on the top floor of an almost 100 year old building. The penthouse is glamorous until it rains! These old plaster walls need special attention when they get wet and this moisture meter is exactas try what I need to know when the plaster is dry enough to paint.
Jan T –
Works good. no damage to material.
Roland Rolson –
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.
Just a Techie –
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.
Amarilio Lami –
Handhavandet är enklast tänkbara. Stor, ljusstark display med färgåtergivning och få knappar att hålla reda på. Den har stor kontaktyta som jag inbillar mig underlättar fuktmätning. De få negativa aspekterna är att den är svår att fuktmäta hörnor med och att den oftast visar maxresultatet 100%. Det är sällan man får resultat mellan exempelvis 45% och 99%. Antingen blir det ett lågt resultat eller också springer mätaren till max, trots att man bara rör den några centimeter på väggen. Står inget om det i instruktionerna men den mäter också fukt genom laminatgolv. Ytterligare ett plus är att den är billig.
Víctor Fernández Romero –
Le faltan instituciones en castellano y en una una guía de valores.