Moisture content meter for wood derivatives and construction materials, with two built-in destructive electrodes and an external sensor with two electrodes and cable to work remotely. Incorporates 8 calibration scales that groups 150 different species of wood. Includes temperature penetration probe with handle for automatic temperature compensation, and calibrator. Electrical resistance range: wood 0-100% / construction 0.2-2%; accuracy: ± 1% in wood / ± 0.05% in construction; power supply: 2x 1.5 V AAA batteries; dimensions: 180 x 50 x 31 mm; weight: 175 g.