alarm device
alarm device is a device or percussion instrument.
Also recorded as alarm; alert.
Overview
Device that alerts people to a dangerous or abnormal condition using audible, visual, or other sensory signals.
In detail
Its recorded use is warning.
It forms part of control room and warning system.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Alarm device”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q945434: alarm device
Consult the source