Review on Enhance Detection Accuracy with Klein Tools ET140 Non Destructive Detection by Jim Booth

Reverse reading means no holes in the substance being measured. Hold it horizontally in the area you're looking at and you'll instantly get a percentage reading. Wipe it on a wall or ceiling for instant results. We have an RV and there was a leak in the roof. I needed to know whether or not to smash the roof, and if so, how much. I was hoping to expel the moisture after sealing the outside. I opened a few vents and turned on the heater. I could watch the humidity drop until everything was back to normal. I could also see where the problem areas were. It is also good to see how high the water content of the wood is. Checking the boat for a soaked hull. Check the ceiling for leaks before damage occurs.