Digital air and material humidity measuring device for measuring relative humidity and ambient temperature. Usable as a tabletop device with a foldable stand and integrated magnet holder. The digital display shows minimum and maximum values as well as various functions and is easily readable due to its size. Upon request, the displayed temperature unit can be changed to Celsius or Fahrenheit. Another interesting feature is the display of minimum and maximum measurement values, which can be toggled using a button on the front of the device. In normal measuring mode, the hygrometer measures upon switching on, unless specific settings have been made. The rear battery compartment is equipped with a AAA 1.5V alkaline battery.