However we recommend to purchase conversion kit Dominator701 (comes with one add-on receiver with one remote) or Dominator702 (with two remotes) as this conversion kit (also a more valuable option) will allow you to program up to 30 remotes just in case your current receiver is out of memory capacity. Also add more remotes with the receiver is much easier to acquire in future needs.
your existing DOM502 remote will still work.
This one is upgraded to Dominator701.
This one is upgraded to Dominator702.