The system I now use is a very simple one by NJ international there system is about 60$ a block it’s complete with everything you need for single direction or bi-directional and you can daisy chain them to work together I now have 30 of them on the layout the pictures are of me testing out the new system I was impressed on how easy it was to install I tried digitraxx first then went with several other ones but found them to be very complicated and expensive
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