Dwarvin DVITBS101 - Tall Block Signal Kit Lamplighter DFL w/ Power Supply - HO Scale

There is absolutely no programming nor soldering required. The 3 wires from the detectors are attached to the control unit using screws built into the control unit. It couldn't be easier.
The fibers are inserted into two "chimneys". Each can hold either a 1.0mm fiber or a 0.75mm fiber. The HO Tall Block Signal uses a 1mm fiber.

If you have a double track, just order another 2 detectors that you will find on our site.