Features: - Records exactly (1/100 sec.) the times - Can be used with all current Carrera racing track product lines - Adjustable width continuously to suit various track width - For two lane operation - Cars are recognized via infra-red light barrier - Time trials from 1 seconds to 99 min. - Lap races from 1 to 999 laps - Start phase with acoustic starting lights - False start function - Battery-operated, 4 batteries AA/LR6 (batteries not included)