The Draper Damp Detector is a high-quality hand-held instrument for detecting rising and penetrating damp in foundation walls, floors, and timbers. It's suitable for checking dryness of surfaces prior to papering or tiling and also if the wood is dry before painting or varnishing. An audible signal detects the presence of damp and humidity. Specifications Material: Plastic Dimesion: H22,7 x W16,8 x D5,7cm Requires 1 PP3 battery (battery not included) For more information on Draper Damp Detector click here. #html-body [data-pb-style="60FF6AA7781BA"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}#html-body [data-pb-style="60FF6AA7781C8"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}