Oasis OH-3 Guitar Hygrometer and Humidifier


87 out of 100. Incorporating 20+ ratings and reviews.

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Oasis OH-3 Guitar Hygrometer and Humidifier

Gearank Recommendation

The OH-3 earned a spot on our recommended list for Guitar Humidifiers from our first edition in November 2017 until January 2022.


The Oasis OH-3 Guitar Hygrometer and Humidifier is a package which includes an Oasis OH-1 humidifier as well as an Oasis OH-2 hygrometer.

The hygrometer measures the ambient humidity, which makes it easier to know whether or not your humidifier is producing the correct amount of humidity for your instrument.

The cool thing about the OH-2 hygrometer is that, in addition to displaying the humidity inside of your guitar case, it also shows high and low temperature extremes. The OH-1 is a great humidifier in its own right. The gel used in the humidifier has a greater longevity than a sponge, and the casing used helps to prevent leakage.

The inclusion of the OH-2 makes the OH-3 package a great deal for anyone looking to preserve their instrument, because it has everything that you need in order to protect your instrument from changes in humidity.


  • Weight: 1.4 oz
  • Suspension: Held By Strings
  • Longevity: Medium
Although this was previously on our recommended list, there are now more highly rated options available which you can see in our guide to The Best Guitar Humidifiers & Case Hygrometers.

About the Author

Alexander BrionesAlexander Briones

I have been writing about and researching music gear for many years, all while serving as a music director at my local church. I engage in guitar playing and singer-songwriter stints, in addition to mentoring young musicians and teaching guitar and bass.