Altimetro - free

Easily measure altitude in style with the Ascent Altimeter. Powder-coated aluminum housing provides sleek protection for the altimeter while you are out in the elements. Includes a reflective, break-away lanyard. Get accurate altitude and barometric readings in either feet (#214-F) or meters (#214-M) as you trek through the mountains, valleys, or anywhere else life takes you. Analog design includes a weather trend indicator, keeping you aware of storms building at high altitude.

Sun Company Ascent Altimeter - Battery-Free Altimeter and Barometer | Weather-Trend Indicator with Rugged Aluminum Case and Reflective Lanyard | Reads

Radar Altimeters – 5G Mitigated Radalt Solutions

Measures altitude up to 15000 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 rugged ABS polymer hardside carrying case and lanyard.

Sun - Altimeter 203

JUJU LLMM 3-in-1 Altimeter Compass for Hiking, Accurate Barometer Dial Tracker for Outdoor Sports, Professional Skiing Skydiving Handheld Gear Portable Gauge Weather Forecast Battery-Free : Sports & Outdoors