Abstract: Disclosed is a device with a data transferring unit and a method for measuring moisture content of a wood material. Knots and other imperfections in a wood material causes problems in moisture content measurements. Also, more accurate data relating to the moisture of the material is needed during the time of storing, transporting and building. A device for measuring moisture in wood material includes a body part arrangeable on a surface of the wood material, measuring unit being functionally connected to the body part, wherein the measuring unit includes at least a first pair of electrodes and a second pair of electrodes to be inserted in the wood material for investigating, and wherein a measuring depth of the first pair and the second pair is arranged to differ for providing impedance data from a first depth and/or a second depth of the wood material.