Dimensions: 4.3'' x 2'' x 0.8''. Weather forecast is presented in easy to read icons that indicate improving, slightly cloudy, deteriorating, adverse or stormy weather conditions impending. See current temperature in Celsius and Fahrenheit as well as 24-hour Temperature history graph to understand trends; simultaneously see current and minimum wind chill. Understand current wind direction and speed to compare against the ideal conditions for your activity and objective. Includes a wind speed alarm. Day of the week, date, and time at your fingertips. Includes an alarm to get you up and out or to signal critical turn-around times set during pre-planning. Race timer mode and stopwatch function. Predict the weather through barometric pressure - 24 hour pressure history graph, stormy alarm, measure in Hecto-Pascal, millibar, or inches of mercury. Altimeter measures current, minimum and maximum altitude, accumulative ascent and descent sums total ascent/descent for skiing or other gravity sports and counts laps via a ski-run counter. An altitude alarm alerts to your critical navigation elevation to keep you on route. Easily set to feet or meters. Boxed with hanging tab.