What is another word for warning devices?
Pronunciation: [wˈɔːnɪŋ dɪvˈa͡ɪsɪz] (IPA) 
Warning devices are essential tools used to alert people of a potential danger or hazard. There are several synonyms for warning devices, including alarms, sirens, buzzers, bells, beacons, whistles, signals, and horns. Alarms are commonly used in buildings and vehicles and can be set off manually or automatically in an emergency. Sirens are typically used by police and emergency services to alert the public of an imminent danger. Buzzers and bells are often used to signal the end of a class or lunch break in schools. Beacons are used to mark a location or direct attention towards a particular area. Whistles and horns are used by referees and coaches to stop play or signal the start of a game. Signals are used in transportation and to convey information to drivers and pedestrians.
