Product Specifications
Product Description
Marine sextant
The marine sextant is a kind of reflection type angular measuring optical instrument.
1) Measuring the altitude of celestial bodies to determine the position of the ship at sea.
2) 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.
3) Measuring the vertical angle of a known altitude object to obtain its distance.
TYPE JD130-20 JD 130-40
Measuring Range -5~ +130 -5~ +130
Accuracy (peak to peak value) 20 40
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
Jiu Ding Group Co., Ltd. Was incoporated in september 2004 as a professional supplier of PPE and Marine Equipment Today, Jiu Ding Group Co., Ltd has 3 subsidiaries companies and about 500 employee, which are located in Shanghai and Jiangsu, China.
The brand name of JiuDing enjoys good reputation and long-term trust from experts in many fields, due to her strong belief in sincere attitude, reliable credibility, state-of-the art expertise and prompt service. We are confident enough to provide quality products and services in PPE and Marine Equipment fileds.
Our vision
We face the challenges bravely
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