Competition Electronics Prochrono Digital Pal Chronograph -
Large shoot-through area registers velocities from 22 to 7,000 fps. Actual velocity is displayed clearly on the LCD screen. Shoot again and it registers the next shot velocity. Push the control button and the ProChrono displays the total number of shots and the average velocity. Can be mounted on a camera tripod or table. Uses a 9-volt battery (not included).