Humidity Sensor The Pinless moisture meter do not damage the test material. It is easy to use in various damp environments, but not suitable for metal measurement. High-Precision Water Leak Detector accurately detects water leaks and tracks humidity levels. It can check moisture in walls, floors, ceilings, and other materials up to 3/4 inch deep. wood Moisture Meter It checks the moisture content of logs for burning, uses the "HOLD" button to lock the screen for accurate readings, and automatically shuts off after 5 minutes of inactivity. Automatic Alarm Press it against the wall, it gives a % reading of moisture. It has a color indicator (green for dry, orange for mid, red for wet) and moist will emits a beeping sound. Easy to Use The Moisture Detector large display makes readings simple, and the combination of backlight display and flashlight for use even in dark environments. The compact size of the device makes it easy to carry and use in a variety of settings.. Non-destructive moisture meter for effective detection of humidity levels