| Customization: | Available |
|---|---|
| Weight: | 2.5kg |
| Transport Package: | Wooden Box Packing |
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Marine Nautical Sextant 3.5*20
1.Application
The 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 ERROR of the instrument should be adjusted and predetermined before use.
| Type | GLH130-40 | GLH130-20 |
| Measuring range | -5-130 | -5-130 |
| Accuracy | +/-20" | +/- 10" |
| Readability | 12" | 12" |
| Temperature range | -30--50c | -30--50c |
| Telescope | 3.5*40 | 3.5/40 |
| Lamp voltage | 3V | 3V |
| Net weight | 1.2KG | 1.8KG |
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