Mark. creed. . matter. plastic. . color. black. . specificities. power supply: lr44 lithium battery (included). lcd screen. humidity control (+/ - 3% relative humidity). temperature control (°c / °f). 1 button: choice °c / °f. fixing: magnetic. . dimensions. black electronic hygrometer. length x width x thickness (cm). 5.3 x 3.9 x 1.7cm