Guitar soundhole humidifier with builtin hygrometer for acoustic guitars Keep your acoustic guitar stable and playable by controlling humidity where it matters. This compact soundhole humidifier mounts inside the soundhole and includes a builtin hygrometer to monitor local humidity. It is designed for easy use, low profile placement, and reliable day to day protection of wooden instruments. Key benefits Protects the instrument: Helps reduce cracking, warping, and fretboard shrinkage by keeping humidity more consistent inside the body. Simple monitoring: The integrated hygrometer shows humidity at the instrument level so you can respond quickly if conditions change. Spacesaving design: Low profile unit fits inside the soundhole without interfering with normal playing or string vibration. Easy to use: Refillable and straightforward to install and remove for regular maintenance and travel. What it does Adds and maintains moisture inside the guitar body to slow moisture loss from wood. Provides immediate humidity readout to help you decide when to add water or adjust storage conditions. Fits most standard acoustic guitar soundholes for direct, targeted humidification. Compatibility and size Intended for acoustic guitars with standard circular soundholes. Compact and low profile to suit a variety of dreadnought, concert, parlor, and classical body styles. Designed for insoundhole placement so it works with the instrument rather than requiring external stands or large cases. Materials and build Constructed for repeated refilling and safe placement inside the instrument. Soft interior material allows moisture release while minimizing contact damage to the guitar finish. Durable outer housing resists deformation and keeps the hygrometer visible. Performance and care Refill with distilled or demineralized water to reduce mineral deposits and maintain consistent performance. Check the builtin hygrometer regularly and rehydrate when humidity readings fall below your target range. Remove before longterm exposure to excessive moisture and dry the unit if it remains wet for extended periods. Practical use scenarios Winter storage: Use during cold, dry months to stabilize humidity and reduce the chance of cracks and fretboard separation. Case and flight travel: Place inside the guitar while traveling to buffer rapid humidity changes during transit and storage in airconditioned or heated environments. Between gigs and lessons: Keep in place during short storage periods at home, rehearsal spaces, or backstage to maintain playability and tuning stability. What you will notice Easier tuning stability and fewer sudden slips in action and intonation caused by quick humidity shifts. Simple, instrumentlevel humidity feedback so you know when to add water or change storage. Notes for results Use distilled or demineralized water only. Regularly monitor the hygrometer and follow a consistent refilling schedule based on local climate. Remove and dry the humidifier if you will not use it for an extended time. This soundhole humidifier with hygrometer provides a practical, loweffort way to manage humidity directly inside your acoustic guitar, helping preserve tone and playability in everyday and travel situations.