Accurate distance measurement and map reading on outdoor trips - Features a built-in magnification lens and sightlines to help you read maps and estimate distances with precision during hikes, camping, or other outdoor adventures. Moisture-resistant design - Protects essential components in wet or damp conditions, helping maintain reliable performance in rain, fog, or mist. Secure attachment and portable use - Easy to attach to a backpack or slip into a pocket, providing a dependable navigation instrument for hiking, camping, climbing, and other outdoor activities. Rugged construction and durability - Made from high-quality metal to guard internal precision components, delivering durability and long-term reliability in demanding environments. Compact and convenient - Designed for pocket-ready carry or practical backpack attachment, making it quick to grab when you need orientation on the go. Use scenarios - Day hike: Use the magnification and sightlines to read the map accurately and estimate distances to landmarks along the trail. - Camping trip: Keep it secured on your backpack for quick orientation during morning or evening navigation in varying weather. - Climbing or mountaineering: Rely on the sturdy metal build and reliable readings to stay oriented in challenging terrain and low-visibility conditions.