Nice little modern looking barometer with humidity and temperature dials at the bottom. Easy to adjust the pressure when setting up with a small screw at the back, you can find your local air pressure on weather sites.After I hung the this the weather was damp and cold so I assumed it would move towards lower pressure which it didn't. Before I went to bed the pressure was rising so I wondered if it was broken as I could see that it would be sunny the next day but it was right as when I woke up it was clear and sunny!