StewMac Hygrometer/Thermometer

Protect your guitars from cracks or swelling! Monitor humidity and temperature to help protect wood and finished instruments. Excess dryness makes wood shrink and crack. Excess humidity swells wood and blushes newly sprayed finishes. Our large, easy to read gauge monitors Fahrenheit/Celsius temperature and relative humidity in workshops, wood storage areas, guitar display cabinets and finishing rooms. Tested in our shops for accuracy, it features a big 4-1/4 inch diameter face and a detachable stand for mounting on your wall. A wise investment that never needs batteries! Item specifications: Humidity range: 10 to 90% (+/-2% tolerance) Temperature range: 0 to 120F / -20 to 50C (+/-1% tolerance) Overall dimensions: 4-3/4 inch diameter x 1 inch deep (120.65mm dia. x 25.4mm deep)