Whether you’re in the air, on the sea or on land, the Casio Sensor Thermometer Compass Watch is your go-to timepiece for all of your outdoor adventures. It has a three-year battery and a LED super illuminator backlight with afterglow. It is water resistant up to 100 meters and also low temperature resistant. Its features also include a digital compass, altimeter, barometer, thermometer, and world time for 48 cities. It has five daily alarms, plus, a stopwatch and countdown timer.