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- Full-field Beam Converger with quartz harcoat replaces conventional half-silvered mirror. Horizon and atrsobody images are combined in a single full-field for easy, reliable sights under the most difficult conditions.
- Patented Beam Converger with full viewing field.
- Special mineral coating is selective for different wavelengths of light. Horizon is transmitted in one colour region and the star or sun in another.
- Improved reinforced plastic stiffens frame for greater measurement accuracy.
- High-efficiency LED (solid-state Light Emitting Diode) illumination system, which floods arc and drum with soft light. The LED will last for the lifetime of the sextant. Batteries, which included, will last up to 10 times longer than with regular bulbs. Positive "push-on" switching action, with vinyl boot water protection.
- Based on manufacturer's data, average LED "half-life" is approximately 10 years if operated continuously.