5890 sensor , RX7 sounder: Adopt into Honeywell Lyric or nah

I have adopted most of the 58xx series sensors left over from an ADT install (preceded my time in this house) to a self-managed Lyric install. I do have an RX7 sounder, a 5890 sensor, and another PIR sensor (haven’t opened it up yet to get the model number).

Should I add these too?

The 5890 sensor is in the interior hallway outside of bedrooms, while the other PIR is in a living room with large window with entry potential from outside.

What was the original security theory-crafting that led to these PIR sensors installed originally?

The RX7 sounder is hard wired to the half-gutted panel and is in the same hallway as the Lyric. I’m guessing it’s redundant and unequivocally not worth the effort to pull a wire to it from the lyric?

submitted by /u/ZanyDroid
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July 5, 2025
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