Phát hiện độ ẩm trong tường bằng máy đo độ ẩm. Tìm các phần tường lạnh, ngấm nước bằng camera hồng ngoại. Cắt tường thạch cao để tìm nguồn rò rỉ.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
A moisture meter is a piece of equipment which, when placed directly against a wall, will analyze the moisture content of that wall. If you know that you have a leak within a certain wall, but are unaware of the precise location, place the moisture meter at 5 or 6 different spots on the wall. Whichever spot gives the highest moisture reading is closest to the leak. You can purchase or rent a moisture meter at a large hardware store or home-improvement store. These gadgets are frequently used by