Ultrak Seiko 100 Lap Memory Timer with LED Light LED backlight illuminates display for easy viewing in low light situations Two channel countdown timer; each channel can be preset for up to 100 hours Measurable up to 100 hours in 1/100 of a second; split/lap time measurement Store and recall of up to 100 split/lap times; memory recall during operation Battery life indicator; automatic shut-off function; water resistant