The Ultrak 590 altimeter watch with compass has current and sea level pressure, an altimeter with 24 hour memory, a barometer with 4 day memory, countdown timer, stopwatch, backlight and more.
Features
Altimeter with 24 hr memory
Barometer with four day memory
Difference measurement of altimeter and barometer
Current & Sea level pressure
Logbook & logbook history
Compass
Temperature, user can select either fahrenheit or celsius