Measure lap time and average speed. The timer measures and displays lap times and speed on a 2-line LCD display. Races can be up to 40 laps long. Up to 10 races can be stored in the timer. Lap times and speed can be reviewed after the race is over. With optional download software and computer cable (see below), the results can be viewed and saved on an IBM-compatible computer. Sensor stand also available. Windows XP-7.