The Vermont Weather Station monitors both temperature and humidity. Finished in antiqued copper, it uses a 4.25 inch diameter thermometer dial with a 1 inch hygrometer dial with an outdoor swivel arm bracket for mounting at just the right angle. These classic weather instruments combine practical simplicity with timeless design. The solid copper housing will endure well outdoors because it is naturally resistant to corrosion. Left unattended, it will attain a rich, dark patina. We do not apply a protective coating to the surfaces of our outdoor products because there is no clear coating that lasts as long as the raw metal itself. The highest standards of craftsmanship have been employed to assure that these instruments provide a lifetime of trouble-free service.