Compact B is an affordable moisture sensor that fits in your pocket. The display and the sensor are in the same device. Compact B is used for measuring moisture in building materials. The surface moisture meter is an excellent tool for finding out moisture problems at construction and renovation sites and at home. The meter can detect moisture differences in all non-metallic materials. It gives a quick and accurate reading of the surface moisture and helps you detect possible moisture damage in time. The surface moisture meter is easy to use and conveniently compact, so you can take it with you anywhere. It is also protected from moisture, so you can use it safely even in wet areas. The measuring depth is up to 40 mm. If the amount of moisture changes, it is immediately visible on the meter. Includes: Plastic protective case, instructions and 9V battery.