MULTI-PURPOSE - Suitable for travel, adventure, map positioning, military equipment, gifts, etc. HD azimuth dial and clear scale dial allow for quick and precise readings. Deflection angle lens enables rapid measurement of target height and slope. Dual centimeter and inch scales accommodate different user preferences. Advantage: The altimeter is small and portable, measuring 3.01 x 2.13 x 0.55 inches (L*W*H), with a dial diameter of 1.5 inches and weighing 106 g / 0.23 lb. Comes with an exquisite nylon pouch for easy storage and protection. Professional Altimeter - This is a professional-grade, multi-functional altimeter that is waterproof and shock-resistant. Made from aluminum alloy, it is highly durable. Package Includes: Portable Outdoor Altimeter Sold by the Store MULTI-PURPOSE – Ideal for travel, outdoor adventures, map navigation, military gear, gifts, and more. The HD azimuth dial and clear scale face allow for quick and precise measurements. The deflection angle lens enables rapid measurement of target height and slope. Equipped with both centimeter and inch scales, it suits a variety of users. Advantage: The altimeter is compact and portable, measuring 3.01 x 2.13 x 0.55 inches (L x W x H), with a dial diameter of 1.5 inches and weighing only 106 g ( 0.23 lb). Comes with an elegant nylon pouch for easy storage and protection. Professional Altimeter – This is a professional-grade, multi-functional altimeter that is waterproof and shock-resistant. Constructed from aluminum alloy, it is highly durable. Package Includes: Portable outdoor altimeter, sold by the store.