With metal poles and ladders,
these scale signals will look great along your right-of-way. The
3-position flag has a realistic slow motion. The base has optical sensors
built-in with a sensitivity adjustment. Just apply power and put them next to
the track. These signals do the rest.
When the train is sensed next to the motor moves the
signal to the stop condition and shows RED. No power is on the motor in each
position. Four (4) seconds after the train passes, the signal changes to
caution showing YELLOW. After three (3) more seconds the signal returns to
clear showing GREEN.
They have separate inputs and outputs so
they can be daisy chained. The down track signal will hold the up track signal
on yellow until the down track signal goes off red.