This is a used unit that I have used on my class A motorhome. I bought a new one and now have this Roadmaster BrakePro 9300 for sale. It comes complete with brakeaway harness and switch and BrakeAlert Receiver
 and BrakeAlert Transmitter. You get exactly what is in the pictures.  The parts that I kept in my tow vehicle are furnished brand new. This item works great, and I had no issues with it while I was using it. There are minor scratches on the outside case but nothing of any consequence  (please see pictures)If you have any questions or concerns, please ask. Complete description of this unit is available on the following website.  http://roadmasterinc.com/pdf/85-2739.pdf

I do not have the original instruction manual but it can be printed from the web site.