Select the drop-down menu below to choose it as a kit or assembled by our techniciansSlotcar timing. Complete kit for 4 lanes with LED sensors and infrared led strip to illuminate the sensors. The whole system is ready for use. The kit includes: Bistbox kit 2-4-6 lanes; 4 detection sensors to be positioned under the track; Bistbox sensor connection cable kit; Arduino module with preloaded software and Bistlap software unlock; 4 relay module 10A; Led strip 35 cm. Not included in the kit: Bridge to install the led strip, power supply for led strip and usb cable for pc-bistbox connection.