These Daigger Memory All Function Stopwatches 300 time to 9 hours, 59 minutes, 59 seconds, 99 hundredths. Accuracy is 0.001%. Stopwatch functions include single action, split, interval split, continuous timing, 300 memories, and programmable alarm times. Three-line display shows running time, cumulative split, and interval split. Recalls 300 memories and displays sample numbers 1 through 300 both during or after event timing. At zero, the timer alarms and counts down from the programmed time. Features also include functions of pacer, stroke, and speed calculations. 2 year battery, lanyard, and velcro for mounting are included.