This might help
The "Security" module version needs the key to operate the bike. It has a proximity fob that must be within so many feet of the bike to allow it it start, but the ignition must be used, and sells for the $180 range.
The "Keyless" is exactly that. Have your fob, walk up, turn the kill switch for the bike to run and hit the starter. The fob activates all the ignition parts. This one sells for the $450 range.
I had one of the keyed versions, but it didn't meet my interpretation of a clean install, and certainly wasn't a 10-15 minute install on a Victory as per the advertiseing. That is fine, I never meet the time limits anyway.
I am sure the unit worked as they advertised and they are a top notch company to deal with, but it wasn't something I felt was right for me.
Guard dog has a lot of satisfied customers, and even though I chose not to use their product, I am one of them.