Features: Handy size: 5 3/8 x 2 3/4 x 1 1/4 inches, Lightweight, No tools necessary to change the battery, Low battery indicator, One button operation, Full 3-digit LCD display
Reads 4 to 30 bps.
Reads 200 to 399 fps
Uses one 9 volt battery
Action Markers Custom Chronograph X Radar Deluxe Handheld ChronographAwesome little chronograph. Simply hold the button down when you want to read, let go of the button when you don't. If you want to measure BPS, just keep the button pressed. It's not rocket...