Wrist-top computer watch with altimeter, barometer, compass, and weather indicator * Altimeter displays current elevation, shows ascent or descent, and records session * Intelligent storm alarm senses drops in air pressure and notifies you of approaching storms * Barometer helps you predict changing conditions; built-in weather trend indicator * Aluminum black finish; accurately measures depth to 30 feet; weighs 2.26 ounces; 2-year warranty