Klein Tools ET140 Pinless Moisture Meter for Non-Destructive Moisture Detection in Drywall, Wood, and Masonry; Detects up to 3/4-Inch Below Surface

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.

Used this to check how wet walls were after a flood or escape of water as insurance call them. This helped gauge how dry our building was for repairs to start

As described, not sure of the accuracy???

Used to measure damp levels in my caravan. East to operate. Compared to a pinned damp meter and the readings are similar.

Absolutely rubbish, cheap junk that won’t stay powered on. What a waster of time and effort!

So I tested this tool on the exterior wall of our 1960's brick build semi-detached house. I can see the tar DPM on the brick line near to the ground. As expected on masonary setting the bricks below the DPM are Over Limit so they are full of moisture. I knew this would be the case, there are salt deposits on the brick level immediately below the DPM so this shows that evaporation is happening and the mineral salt is left behind. Above the DPM the value drops down significantly from 50% down to roughly 20% and then the lowest its gets it about 12-15% about a meter up the wall. This is an expected result. However when I move inside the house, the kitchen walls, apparently OL readings all over the wall from the floor to the ceiling. I can only assume this must be something to do with the painted finish? I also check the hallway internal brick wall and the same Over Limit reading. We do not have an issue with blistering or mould in this house, so I can only assume that the tool is giving a false reading, but why this is I am unsure, I can only put it down to the paint finish.

Received broken. Powers on for a second and then powers off. I've tried different batteries and still doesn't stay on. Defective and returning to Amazon.

Got this to measure moisture in the concrete floors in our new build about 12 weeks after they went down. We had the setting to masony but the readings were off the chart. We knew it couldn't be right as we had underfloor heating on during that time and the weather had been especially sunny. Got the builder and our floor installer to check using their moisture readers and the result came back fine - so we knew ours was wrong. Haven't used it since, maybe we got a dud but this was not accurate at all!!!

Great product and works as expected, already identified issues I was already concerned about

After dealing with a suspicious damp spot near our bathroom wall, I picked up the Klein Tools ET140 and I'm genuinely impressed. This pinless meter scans up to 3/4 inch below the surface without poking holes in your drywall, which was exactly what I needed to track down a slow leak without causing more damage in the process. Setup took maybe two minutes — power it on, select your material type, and start scanning. The readings were consistent and repeatable, which gave me real confidence I was getting accurate data rather than random numbers. I was able to map out the moisture boundary around the affected area and confirm when it had fully dried after repairs, which was incredibly useful. At $49.97, this feels like a genuinely fair price for a Klein Tools product. The build quality is solid, the interface is straightforward, and it performed reliably every time. Whether you're a homeowner doing preventive checks or dealing with active water damage, this meter earns its place in the toolkit. No complaints whatsoever.

As a plumber, this moisture meter paid for itself on the first job. I was able to quickly locate a hidden leak behind drywall without causing unnecessary damage, which saved both time and money. The pinless design is easy to use and provides fast, reliable readings on different surfaces. Klein Tools delivered another quality product that I now keep in my toolbox at all times.

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.

Habe ich gekauft für mein Wohnmobil und damit Feuchtigkeit am großen Panoramafenster (Dichtung) entdeckt, von Werkstatt bestätigt. Bisschen teuer, aber wahrscheinlich seinen Preis wert.