The explorer can operate up to 3 DCS engines simultaneously.
Thanks everyone for all of this information. I can’t tell you how helpful this is and how much time you’re all saving me. This is a great forum!
I have to add to this thread.
I just bought the DCS explorer to have the entry level experience. that lasted less than an hour and I wanted more than three locos and more functionality- I loved the ease of operation- it is really user friendly. I am blowing the budget and moving to the WIU / TIU version,
PS- my DCS explorer is for sale on the FS forum. It is perfect for three locos and a smaller layout.
If it wasn't for the app, I would never had got into DCS. It made it easier for me to understand what I was doing running my trains. Now, I run MTH trains exclusively on my layout. I love the DCS system, and it works for me. And MTH products are pretty awesome, too. Happy Holidays to everyone running DCS trains this Christmas.