タイトルまたは説明

MARINE SEXTANT Azimuth Circles Clinometers Magnective Compass This is a kind of reflection type angular measuring optical instrument. Measuring the altitude of celestial bodies to determine the positionof the ship at sea. Measuring the two horizontal angles between three known position land objects to obtain the ship location on the chart by the help of a station pointer. Measuring the vertical angle of a known altitude object to obtain its distance. TYPE JD s*****0 JD s*****0 Measuring Range *5�～ ***0� *5�～ ***0� Accuracy (peak to peak value) *0” *0” The filters of Horizon glass 3 3 The filters of index mirror 4 4 Battery 2 x 1.5v 2 x 1.5v Net weight 1.8kg bronze 1.2kg al alloy MINIMUM QUANTITY 4 4 JD s*****0 $ JD s*****0 got the certification of ccs.