Why do I need two keypads?

@dukkar11 I have a 40+ sensor SS3 system and have two keypads, located as you describe at the exit/entry door in the kitchen that goes to the garage and MB. Yep, convenience and ability to see what is going on with the system. Want only keypad and use your phone or keyfob, you can do that. Personal choice.

Functionally, you're correct. You only need one keypad to set up and control the system physically.

It really just comes down to personal preference. Not everyone has a smart device to control the system from and may prefer the full control of a keypad to a fob hanging in the second location.

We have 3 doors but only 2 keypads  because of how we tend to use the system and where/what we tend to be doing when we need to do it. The second keypad goes by our second most used door and the third door is used so little it just gets to be inconvenient.

When we got the second keypad it was because the first gen keyfob was a terrible design that routinely fell apart. It was just a more solid, reliable way to control the system at our secondary door. Also, going back to unreliable design, the previous gen's keypads would occasionally just fail on us. One keypad would refuse to work at all for about 3 days at a time so we'd have to use the second. It was a necessary redundancy. Now that the design is much better, we really don't need a second keypad, but it carried over.