The MusicNomad Humitar ONE is an easy-to-use, no-mess, low-maintenance guitar humidifier and hygrometer that is simple, accurate and reliable. It safely releases moisture evenly to eliminate potential problems such as warping, shrinking and cracking. The innovative Humid-i-Bar reusable sponge holds an ample amount of water, which means less monitoring on your end while ensuring your guitar remains cared for. To test that your guitar is in the safe zone, the Humitar ONE monitors its environment every 20 seconds, and gives you the humidity and temperature readings on its LCD display. It also gives you the maximum and minimum range over the period you are measuring, and can be reset at any time. The Humitar ONE includes additional features such as a reminder of the humidity and temperature safe zones for your instrument, a long-lasting AG 13 battery and Fahrenheit or Celsius readings.