Altimeter Watches

The altimeter is an instrument that indicates height above sea level. The altimeter watches estimate altitude based on changes in barometric pressure, which means that inside the altimeter watch there is a pressure sensor (a barometer) that measures changes in air pressure to figure out your altitude. This estimated measurement usually set in accordance with the international standard atmosphere (ISA). But due to varying temperatures around the world, an international standard is inaccurate for measuring altitude, so to function properly; altimeter watches must be calibrated by entering a known height above sea level along with the current temperature and barometric pressure. For safety, Altitude measurements must be as accurate as possible. Today most of altimeter watches also feature barometer, thermometer, and a compass on them too. Altimeter watches are the perfect choice for pilots, skydivers, and outdoor adventurers.

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