Davis Artificial Horizon [144] Brand_Octopus Autopilot Drives Built-in depth and speed transducer

Built-in depth and speed transducer connections

marine-grade

SW45650  - 3' to 6' Perfect Pole Telescoping Handle

It's Easy to See the Data You Need

Davis Artificial Horizon [144] Brand_Octopus Autopilot Drives Built-in depth and speed transducerArtificial 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