With the innovations in modern day , the speed guns have undergone many advancements. New speed guns are able to calculate the speed of an object from a farther distance with the help of the laser speed guns. Speed guns are now moving away from using radio waves and more to lasers as the technology advancements progress . Not only is the range of the speed guns increasing but the accuracy and the speed at which the speed gun can calculate the speed is also increasing . The new accuracy of speed gun is now give or take 1 mile per hour or 2 kilometers per hour. The data storage has increased as most can hold 6000 records, and now are Bluetooth compatible.