ZTC 335 Dual Track Detector module
The Dual Track Detector Module can be used in a number of different ways, none of which require any special decoders or additions to your locomotives.
First as a dual block occupancy detector, to signal to the operator the track position of a locomotive, or suitably equipped item of rolling stock.
Second, as an auto stop detector, bringing a loco to a stop at a pre-determined position on the layout.
Third, as a signalling detector, with protected block section operation.
There are many other uses for the ZTC335 where detection of the position of a loco or stock is required.