Customization: | Available |
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After-sales Service: | 1 Year |
Measuring Range: | -5degree to 130degree |
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GENERAL DESCRIPTION
Marine Sextant is a kind of reflection type angular measuring optical instrument, chiefly used for measuring the altitude of celestial bodies to obtain a position in navigation. The VERTICAL, ERROR, LATERAL ERROR and INDEX predetermined before use.
APPLICATION
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 the ship location on chart by the help of a station pointer;
3. Measuring the vertical angle of a known altitude object to obtain its distance.
Type | GLH 130-40 | GLH 130-60 |
Measuring range | -5° to 130° | -5° to 130° |
Accuracy (peak to peak value) | 40'' | 60'' |
Readability | 12'' | 12'' |
Temperature range | -30°c to +50°c | -30°c to +50°c |
Telescope | 3.5*40 | 3.5*40 |
Lamp voltage | 3V | 3V |
Net weight | 1.3kg | 1.3kg |