Scope of application:
The sextant is a product of the Marine Navigation series. It is a reflective optical angle measuring instrument with high accuracy and flexibility.
It is suitable for measuring altitude angles and horizontal angles on ship decks.

Features:
Measure the height of celestial bodies to find the ship's position, measure the two horizontal angles between three targets with known positions on the ground,
use a three-rod index to find the ship's position on the chart, and measure the vertical angle of the target with known heights. Find the distance.