Multipurpose - Suitable for travel, adventure, map positioning, military equipment, gifts, etc. High-definition azimuth and clear dials allow you to measure quickly and clearly. The deflection angle lens can quickly measure the height and slope of the target. In centimeters and inches, it is suitable for different people. Advantages: Small and portable altimeter measures 3.01 x 2.13 x 0.55 inches (L*W*H), dial diameter is 1.5 inches, and weighs 106g/0.23lbs. Equipped with a delicate nylon bag, it is easy to carry for storage and preservation. Professional Altimeter - The altimeter is a professional, multifunctional, waterproof and shockproof altimeter. It is made of aluminum alloy and is very durable. Package includes: 1*Portable Outdoor Altimeter