Ambient Weather WS-208TBH 9" Brushed Aluminum Traditional Thermometer with Barometer and Humidity, Metallic Radiant Blue The USA version of this instrument displays temperature in F, humidity (%) and barometric pressure in imperial units (inHg). The 9" brushed aluminum bezel and radiant blue dial is both bold and handsome. It's contemporary design is at home in the office, board room or the modern living room setting. The thermometer and barometer are equipped with a set screw for easy calibration. The back includes a hook for easy hanging The weather station measures temperature (in F), barometric pressure (mmHg and inHg) and humidity (%). The barometer allows for sea-level calibration up to 3,000 feet. Do not purchase this barometer is you live above 3,000'.