Caliber IV Digital Hygrometer by Western Humidor (Oasis)
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It's easy to monitor your shop — or your guitar case — with this extremely affordable, accurate and space-saving digital hygrometer.
The most accurate humidity/temperature monitor.
Experienced luthiers try to maintain 40-50 percent relative humidity in their shops, the range at which wooden stringed instruments are most stable.
Excess dryness causes wood to shrink and crack.
Too much moisture can cause wood to swell, and newly-sprayed finishes to blush.
The easy-to-read display provides relative humidity and Fahrenheit/Celsius temperature at a glance. A memory function stores minimum and maximum daily readouts. Unlike analog gauges, the unit has no imprecise moving parts and never needs calibration. It operates between 20-99 percent relative humidity, with reliable accuracy to 1 percent.
Includes secure magnetic mount, battery and 5-year manufacturer's warranty.
Super-slim to fit in your guitar case.
Dimensions: 3-1/2" x 1-1/4" x 1/4" (90mm x 32mm x 6mm).
- Advanced humidity sensor maintains accuracy to +/- 1%
- Temperature read switch for Fahrenheit and Celsius
- Pre-calibrated out of the box + User recalibrate-able
- Three day high/low & averages for humidity & temperature
- Secure magnetic mount
- Battery included