Most certified smoke alarms in the US and EU will not allow you to do anything that interferes with the base function of the alarm. This is why, for example, hardwired smoke alarms do not act as repeaters even though pretty much every other hardwire device does. They don’t want it to miss a smoke detection event because it was busy passing along a message for a lightbulb. So it’s unlikely that you will be able to repurpose a certified smoke detection device and use its signal for anything else.
However, as @krlaframboise mentioned, security sirens do not have this limitation. The Aeon siren or the Aeon doorbell would probably fit your requirement. Granted, it’s an extra device, but better to leave your smoke detection system dedicated to its own purpose.