annunciators
Alert display devices
Annunciators are devices that announce or indicate something, typically through visual or audible signals.
In buildings, an annunciator panel displays which zone triggered a fire alarm.
In older telephone systems, annunciators showed which line was ringing.
The word covers any signaling device that calls attention to a condition requiring response: The annunciator lit up when pressure dropped in the tank.
Urgent warning signal
- sirenWailing alert device
- buzzerElectric signaling device
- hornPointed animal headgear
- bellHollow resonating instrument
klaxon · strobe · beacon · chime · gong · whistle · flashing · hooter
Distinct flat section
- indicatorSign revealing status
- displayPresentation for viewing
- LEDSemiconductor that glows
- monitorDisplay or supervisor
relay · circuit · switchboard · gauge · sensor · keypad · interface · console
alarm
Urgent warning signal
bell · klaxon · strobe · beacon · chime · gong · whistle · flashing · hooter · howler
panel
Distinct flat section
monitor · relay · circuit · switchboard · gauge · sensor · keypad · interface · console · terminal
fire
Combustion with flames
- securityProtection from threat
- elevatorVertical conveyance between floors
- HVACIndoor climate management
boiler · industrial · building · plant · nuclear · marine · aviation · railway · substation · process
warning
Alert about danger
- alertWarning or watchfulness
- indicationSign of what's coming
- statusOne's relative position
fault · trouble · acknowledgment · reset · silence · test · sequence · priority · window · tile
- fire safetyfire alarms, fire drill, fire extinguishers, smoke detectors, fire drills
- industrial controlPLC, control systems, control room, control center, control panels
annunciatorssuppressors
Devices that reduce intensity
silencers · concealers · mufflers · blockers · inhibitors
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