Product Features1) Versatile digital altimeter/barometer/thermometer/watch2) Built-in digital altimeter measures vertical progress, stores hourly ascent/descent rate, and offers altitude alarm3) Automatically records barometric pressure and displays sea level pressure for accurate weather readings4) Electronic compass guides with cardinal or half-cardinal points; intuitive user interface and control buttons5) Electro-luminescent backlight, user-replaceable backlight, and attractive black housing; 2-year warranty
