AiM IR Optic Lap Receiver - 7-pin MyChron6AiM 7 pin IR Optic Lap Receiver Eye Used on the MyChron 6 for lap times, primarily for indoor kart racing applications where GPS is not accessible. The 7 pin MyChron Optic Lap Receiver is used only with the trackside Optic Lap Transmitter for fast, reliable lap time sampling right to your dash. 1. 4 meter length 7 pin 712 binder connector (MyChron6 Dedicated) MyChron 6 use only Note: This is typically used in for indoor applications where GPS is not