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Will the New SimpliSafe keypad work with the Original Door/window/motion sensors?

I want to use Alexa and Siri but can't with the old system. I don't want to have to replace every sensor (I have many, many of them). What can I do?

nope it doesn't..i am in same

nope it doesn't..i am in same situation with 30 old sensors

Only the simplicams and video

Only the simplicams and video doorbell will work with both versions.

Call SS and ask for an upgrade discount, if you bought your old system before Jan 2018 and have had an interactive monitoring plan, you should be able to request a sizeable discount. (at least 50% off, there's no harm in asking for slightly better, but don't expect much).