This Model 3850C Timer AC4 wireless configuration contains everything to time an autocross event with the start and finish lines wirelessly linked to the timer. Includes the new Wireless 3850 Timer AC4, two 5840 T-Link3 Wireless units with included USB Battery Pack, two 25FT Sensor-to-T-Link cables, two 5040 IR Beam Emitters, two 5140 IR Track Sensors, and a 12VDC Power Cable to connect to an automotive battery for the 3850 Timer. Select frequency in options below.
Add optional Protective Foam Stands (four required) and 110VAC/230VAC Power Adapter below.
Select desired Wireless Type and Optimizer Code Options above 
