Hand - held instrument for detecting rising and penetrating damp in foundation walls, floors and timbers. Also suitable for checking dryness of surfaces prior to papering or tiling and also that wood is dry before painting or varnishing. An Audible signals detects the presence of damp and humidity. Uses a PP3 battery (sold separately). Features and Benefits • For detecting rising and penetrating damp in foundation walls, floors and timbers • Suitable for checking dryness of surfaces prior to papering or tiling and also that wood is dry before painting or varnishing • Uses PP3 battery (sold separately) Contents 1 x Damp Detector