All-purpose sports timer records and stores up to 500 laps per session for upload to PC via USB cable. Features single-event and split timing with laser-tuned 1/100 second precision, 500-split/lap time recall, pacer mode, 10-hour timing range, and 12/24-hour clock with alarm. Backlit display. Shock/water resistant. Includes software CD, USB cable, lanyard, whistle, and replaceable battery.