My TT came with the RVLock V4.0 Keyless Entry System with integrated keypad and remote Fob. While it seems to be the best out there, I feel it comes up short. You can have only one code per lock. So no giving a separate code to the kids or guests. Once you share a code, it’s out there…you might then need to change the code that you use. So YOU get to learn a new code.
I have a Schlage keypad lock on my house and can program multiple codes, which I find more useful.
That said, the RVLock has a 6 digit code, and the Schlage has only a 4 digit code. So both have shortcomings.