Lap time beacon works with all AiM Sports lap timers and data loggers.Place one trackside at the start/ finish line to start timing. Only 1 Beacon is to be used at the track at any time. Everyone at the track with a MyChron will be able to share it!Infra-red (optical) beam cuts across the track for precise, automatic timing.
Threaded insert on bottom for attachment to a tripod (not included).
Battery powered (AA batteries), also includes leads for connection to external power.