The multifunctional device is ideal for who need reliable navigation and weather information. The built-in compass provides accurate directional guidance, while the measures your elevation. The barometer helps you predict weather changes, making it an essential tool for hiking, camping, and other outdoor activities. Features -Color:Black -Material:ABS electronic components -Size:9.50X5.30X2.50cm/3.73X2.08X0.98in -Size:51.00 .00X0.60cm/20.04X0.39X0.24in -Versatile design: integrates a compass, electronic barometer, making it a versatile tool for outdoor exploration -Easy to carry: its small and lightweight design makes it easy to carry around, for outdoor use -Precision: equipped with an accurate compass and to ensure precise navigation and measurement during your adventures -Robust construction: constructed with durable engineering grade plastic, ensuring reliability in various challenging conditions -Broad usage: ideal for not only mountaineering but also camping, hiking, and other outdoor activities Package list: Altitude meter compass , lanyard , instruction manual climbing guide barometer