What Is a Golf Rangefinder?
A golf rangefinder uses a laser beam to accurately measure distance and slope to a target on the golf course. The laser beam hits the target and is reflected back to the rangefinder, providing an accurate measurement.
As the laser beam travels at the speed of light (186,000 miles per second) this all takes no discernable time.
The target is typically the pin, a hazard or simply just where you want your golf ball to end up next, such as a dog leg on the way to the pin.