I know @rboy knows this, but for others who may not…
In the US, 80-85 dB is the recommended sound level for a doorbell. 85 dB is considered The maximum “loud“ noise level babies and children can hear multiple times a day without hearing damage.
86 to 105 dB is considered “siren” range, and is legal in most US jurisdictions for things like smoke alarms or pool alarms or intruder alerts, But is often limited to 1 or 2 minutes maximum for a continuous sound.
Louder than that is illegal without a permit in many places. Remember, it’s not just a burglar who may be exposed to it: it’s also first responders, neighbors, etc.