This feature-loaded timepiece has Triple Sensor Technology – a digital compass, barometer/thermometer and altimeter. It's also solar powered (a solar panel recharges a Lithium-ion battery) for years of care-free use. In fact, the battery lasts up to 6 months without sunlight exposure on a full charge. The digital compass with duplex LCD helps you find your position and plan a route, while the barometer/thermometer helps you predict what kind of weather lies ahead. Of course there’s the altimeter which can track altitude, cumulative ascent and descent to your destination. There's also an auto EL backlight, alarm chronograph, a 1/100-second stopwatch, five alarm settings and a calendar that's programmed through the year 2099. Resistant to low temperatures. Resin band. Case diameter: 2".
Love all the outdoor features! Most of all it is SOLAR Powered NO battery replacement. The last compass / Altimeter went out when I was days away from civilization. Barometer helped me see a storm front coming in time to get down the mountain away from lightning. Slick looking enough to wear out in the city at night. The price is right!