Using existing hard wired door and windows sensors with SimplySafe

It''s a defeat for simplicity inasmuch as, for most SS users, opening up a sensor and soldering in some external leads or adding external terminals is not in the plan. For me, maybe for you, a piece of cake; for many others a totally foreign activity. Perhaps the OP has such interests and skills so it would be no big deal for him too.

I'd briefly entertained offering modification services since this question comes up occasionally. But, after more thought, I don't want to deal with any potential warranty or product liability issues. Talking about it and/or modding your own stuff is one thing, doing it for someone else is another.