The USA version of this instrument displays barometric pressure in imperial units (inHg) and includes a reference needle for tracking changes. The brushed aluminum bezel and radiant blue dial are both bold and handsome. Its contemporary design is at home in the office, board room, or the modern living room setting. The barometer is equipped with a set screw for easy calibration. The back includes a hook for easy hanging. A reference needle tracks changes in barometric pressure. The weather station measures temperature (in °F), barometric pressure (mmHg and inHg), and humidity (%).