Fastime 500DM The Fastime 500DM Decimal Minute stopwatch has the following functions: Stopwatch: Triple display showing: split number, split time, cumulative split time, continuously running cumulative time. Split times display shown for 5 seconds then returns to running time display. Timing options are: 1)Normal 1/100th sec stopwatch 2)Deciminute 1/100th minute 3)1/1000th minute 4)1/10,000th hour Data Storage: Up to 500 splits can be stored in memory. Split times are stored in segments. If the timing session consists of (say) 10 split times, these are stored in the memory as one segment. The segment data includes the time of day when the data recording began. The individual split and cumulative split times are then displayed. Countdown timer with three operating modes: count down and stop count down and repeat countdown, then count up Pacer with a setting of between 5 and 240 beats per minute.