After reading a posting on here about a company called DVP, I ordered a set of demo boards from them, and now have ordered an additional 4 sets for remote control of a system I am building (basically replacing hardwire connections thus no conduit, junction boxes etc). Carmen has been great to work with, responding quickly and efficiently to all my requests (she is the general manager there). So far so good with their product. www.dvp.com is the URL for them. Just another happy customer. ----------