Well, the DMP XR150 manual isn’t very clear. But looking at the series listing guide (page 43 - Section 18) outlines the requirements for Household Fire Warning Systems. I don’t see any list of compatible sirens (there may not be a specific requirement for this manufacturer) so I would guess that any siren that says it’s listed for household fire (check for a sticker) would be fine. Keep it below the current rating of the output, do the proper battery calculations, and supervise the circuits. I’ve never personally installed these systems so I’m just going by what I see in the manuals.
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