LaserCraft 91-308, Wire channel in 1980

Product no.: LC91-308

According to the most common types of the switch device or unlocking of doors Three versions are offered by Krois-Modell. There are appropriate sump extensions. When model the length of wire cable could be up to 400 m. Then another signal box was required.

The manhole covers can also correct for mechanical signals, eg Semaphore signals are used.