Our most powerful and accurate timer! This timer is perfect for 24-hour endurance racing. The backlit display can show lap time, split time, or both with a lap counter to 999. Speed can be displayed in MPH or KPH. The memory function can display fastest, slowest, and average lap times on demand, or scroll through 300 stored lap times -- even while the timer is running. Accurate to 1/100 of a second over 100 hours. Special breakaway lanyard keeps the wearer safe in the event of the timer getting caught on the car during a pit stop. Water resistant to 30 meters. Ten-year factory replacement warranty.