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![Davis Artificial Horizon [144] Brand_Uniden nüvi® 3550LM](https://cdn.shopify.com/s/files/1/0513/2618/9750/products/58140XL.jpg?v=1607215873)
nüvi® 3550LM
Mono-Arm Design
Handles up to 1000 cubic feet of living space
Nylon insulator
Davis Artificial Horizon [144] Brand_Uniden nüvi® 3550LMArtificial Horizon Answers the need of every sextant user who cannot depend on a natural sea horizon. Use for backyard practice, finding exact positon when inland, and making exact sextant shot on foggy mornings. To use, fill with water and read the angle of the reflected sun with your sextant. Half your sextant reading is the sun's angle above the true horizon. Windproof and corrosion resistant, the reflecting surface is completely enclosed. Comes
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