The laserliner damp finder compact is a universal device for ascertaining moisture in building materials and for quick checks when working with wood it has a triple scale for wood groups a beech linden willow ebony and b pedunculate oak maple alder spruce birch ash and universal index mode it is suitable for use on aerated concrete anhydrite screed cement screed chalky sandstone concrete c1215 c2025 c3037 and gypsum plaster the damp finder compact has a simple to use one button operation with a