Barometer
A device that measures atmospheric (air) pressure.
Because air is thinner at higher elevations, a barometer can provide a rough measurement of altitude (distance above sea level).
Atmospheric pressure also varies with changes in weather, and thus can be used as one signal assisting weather forecasts.
Last updated Oct 20, 2017 by Rich Brome
Editor in Chief Rich became fascinated with cell phones in 1999, creating mobile web sites for phones with tiny black-and-white displays and obsessing over new phone models. Realizing a need for better info about phones, he started Phone Scoop in 2001, and has been helming the site ever since. Rich has spent two decades researching and covering every detail of the phone industry, traveling the world to tour factories, interview CEOs, and get every last spec and photo Phone Scoop readers have come to expect. As an industry veteran, Rich is a respected voice on phone technology of the past, present, and future.
