Heavy-duty ABS construction Housed in an engineering-grade ABS shell for strong durability in harsh environments, delivering long-term reliability. Compact and lightweight design Portable and easy to carry, enhancing outdoor adventures and serving as a must-have for explorers. Precise measurements Temperature range -10 C to 60 C Altimeter range -700 m to 9000 m Barometer range 300 to 1100 mbar Provides accurate height and weather data for outdoor performance. Enhanced outdoor safety Integrated altimeter and barometer with reliable navigation aids for all outdoor outings. Use scenarios 1) Hiking and mountaineering to monitor elevation and weather changes. 2) Skiing or alpine trips to track altitude and pressure for planning and safety. 3) Camping and trekking to support route planning with elevation and weather information.