Davis Artificial Horizon [144] Brand_Davis Instruments Loud intiutive lead-up and start

Loud intiutive lead-up and start sound signals

We also like being oil-free and environmentally conscious

allowing valuable savings in space and weight

Negative post sleeve (pre-installed)

UPC: 8059617818692

Davis Artificial Horizon [144] Brand_Davis Instruments Loud intiutive lead-up and startArtificial 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