The most common remote entry system is TriMark.
The TriMark system in our MH failed, was obsolete so my extended service contract had an entirely new system installed. It did have a flaw however, it would backfeed the porch light and blow a fuse. I had to install a diode in the 12V line from the porch light to the OEM rocker switch to stop the backfeed.
2000 Winnebago Ultimate Freedom USQ40JD,
ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy