What type of panel was this?

In June 2019 I was passing by an apartment complex, where SpectrAlert Classics were sounding.
After a few minutes, the manager went in and silenced the alarm, but the panel kept chirping every 10 seconds or so.

Anyone here know what type of panel continues to chirp after having been silenced?

Only one I’ve known to do that is Radionics’ D7022, which do beep every so often after being silenced. (or “disabled” in their case)