Rangefinder Reticle, Directional Compass and Low Light Night Vision
In a dark environment, the scale and the compass are illuminated by the light button.
Calculation method of distance:
For example: Given that the height of the lighthouse is 19 meters and the angle is 65, the distance between the observer and the lighthouse is 19/65=0.292km (292m).
Through our ruler, there is no need to calculate. Turning the dial can directly get a distance of about 290 meters.