Suunto Core gathers a range of accurate data and information you need when exploring the wilder parts of the world. Accurate up to 30,000 feet, the Suunto Core altimeter is a valuable tool for mountaineering, backcountry skiing and wilderness travel. It displays your current elevation, shows how much you've climbed or descended, and records your entire session for later analysis. A veritable weather station on your wrist, the Suunto Core barometer measures and records air pressure to help you predict changing conditions, from sunny skies to hair-bending electrical storms. Activated by a rapid drop in air pressure over a three-hour period, the Storm Alarm sounds and flashes, letting you know that something unpleasant is fast approaching. The digital compass on the Suunto Core is a great tool for keeping track of direction while skiing, hiking or exploring a new city. Maximize your daylight hours and never miss another alpenglow photo with daily sunrise and sunset times on the Suunto Core. Head into the surf, and the Suunto Core shifts from air to water pressure, providing accurate depth readings up to 30 feet. Depth Measurement - Maximum Depth 30' Watch - Sunrise/Sunset Time, Dual Time, Countdown Stopwatch 4 Language Menu - English, German, Spanish, & French Button Lock Daily Alarms/Snooze Low Battery (Replaceable) Warning Weight - 0.14 lbs