Telescope laser rangefinder.
The measurement distance is relatively long. The general measurement range is about 3.5 meters to 2000 meters, and the maximum measurement distance is about 10 kilometers. Due to the measurement distance requirements, the blind area is below 3.5 meters, and the blind area is below 3.5 meters. Laser telescopes above 2000 meters generally use YAG lasers. The wavelength is 1.064 microns. In order to achieve a larger measurement range, the laser power is larger.
