There are two types of rangefinders - laser rangefinders and GPS rangefinders.
The principle of the laser rangefinder is to use the propagation speed of laser or infrared in the air to calculate. When working, a beam of very thin aurora is emitted to the target, the laser beam reflected by the target is received by the photoelectric element, and the timer measures the time from the emission to the reception of the laser beam, thereby calculating the distance.
It is very simple to use, aim at the target, press the button, you can read the distance, the accuracy of the laser rangefinder measurement is high. No other auxiliary information such as a stadium map is required.
GPS rangefinders use satellite signals to locate. The pitch map needs to be stored in the instrument, and the accuracy may be within a few meters. For example, there are many apps on the iphone that use GPS ranging and require a monthly fee. GPS rangefinders can give information on green distances, water hazards, boundaries, bunkers and more.
In short, more and more impressive high-tech tools are used in golf. I believe that in the future, all kinds of golf equipment with high-tech new concepts will continue to shine, so that people who enjoy this sport will have more unexpected new experiences~!
