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Keep up with changing conditions! This wrist-top information center tracks direction, altitude and weather, as well as the time. Altimeter function, displayed in either meters or feet, ranges up to 9,000m (29,500 ft.) in 1-meter (3-ft.) increments. Altimeter tracks ascent/descent rate of climbs or ski runs; constant sea level feature omits barometric changes to reported altitude. Barometer with automatic four-day memory helps you see weather trends. Barometer provides data in one-hour intervals for the first six hours, then in six-hour intervals for up to four days. Compass displays cardinal and half-cardinal points and direction of travel; great companion instrument for your GPS unit! Compass can be set to track a bearing, indicating the difference between the given bearing and actual bearing, redirecting you to your course. Declination adjustment function corrects the difference between magnetic north and true north. Accurate timing functions include 12/24 hour display, stop watch with lap or split option, dual time, 24-hour timer, alarms and month/date/day display. Water-resistant to 30 feet (10 meters). Water resistance ensures normal operation in wet conditions; not a diving device. User should avoid pressing buttons while the unit is underwater. Optional carrying methods include a handy carabiner style clip as well as a neck lanyard.