Sun Company Altimeter 202 - Battery-Free Altimeter and Barometer | Weather-Trend Indicator with Soft Leather Case | Reads Altitude from 0 to 15,000 Feet
Measures altitude, up to 15,000 ft., and barometric pressure. Perfect for use as a navigation aid, or to guide you along contour lines. It also features a weather trend indicator (shows if weather is improving or worsening). Includes softside carrying case and lanyard.