Planet Waves Humidity & Temperature Sensor is designed to help you monitor your guitar's environment...

A precision-designed hygrometer that digitally indicates accurate relative humidity levels ranging from low (under 20%) to 99%. Temperature is displayed in both Farenheit or Centigrade ranging from -32oF to 122oF.

Read our Humidity blog to learn more.

The Humidity and Temperature Sensor includes:

•  A programmable set point that can set the minimum humidity desired.  When humidity is below the set point, an icon (water drop) will indicate it is necessary to use a humidifier.
• The high and low memory can also indicate the highest and lowest temperature and humidity conditions your instrument has been exposed to, as well as the date and time of that high and low.
• CR2032 battery