The Ultrak 340 multi-purpose timer has a standard lap function. Ideal for timing swim laps or track and field. Features super large, magnum size [5/16-inch] easy to read digits. Stopwatch counts up to 30 minutes in 1/100 of a second, then counts in seconds over 30 minutes. 24 hour capacity in hours, min. and sec. It has a Fail Safe reset in that the timer has to be stopped to reset. Functions include event, time-out, Cumulative split and 1, 2 fast finish. Day, date and time as well as stopwatch function with alarm. Water resistant to 12 feet. Batteries and nylon lanyard included. Terrific Value for any track or swim coach.