For starters, this TecTecTec laser rangefinder has advanced pin sensor technology that makes it a great tool to make sure you're up to scratch. This PinSensor technology allows you to determine an accurate distance by ignoring any overlapping object that may interfere with your swing. A good example of this is rain. PinSensor will ignore any reflections from the raindrops and continue to extend to the flag to provide you the distance to your next hole.