Ambient Weather WS-108 Handheld Weather Station with Digital Altimeter, Barometer, Thermometer, Clock & Compass The Handheld Weather Station includes a digital clock, thermometer, altimeter, compass, and barometer (relative and absolute with sea-level correction), and a weather forecaster. The Handheld Weather Station is big on features and functions, yet small on price and size, and features a convenient carabineer clip for simple carrying and quick access. Perfect for hiking, camping, running, biking, skiing, snowboarding, mountaineering, climbing, boating, kayaking, and outdoor activities, the portable weather center is a perfect backup to your GPS. Other features include: 30 second super bright LED backlight, Adjustable bezel dial. Dimensions: 2.5 x 2.0 x 0.6 inches, Battery: 1 x CR2032 (included). Easy to replace. One year Ambient Weather Warranty.