Created to open up a world of possibilities for the shooter, these Chrony chronographs including Chrony Alpha chronograph, Chrony Beta chronograph and Chrony F1 chronograph are among the finest manufactured. These fine instruments measure the speed of bullets, arrows and paintballs, with an accuracy rating of 99.5%. A valuable addition for hunter, the competative range shooter as well as the custom reloaders. Basic models can always be upgrade to include the features that you require. Guaranteed to deliver the accuracy and reliability that you need.