What is another word for warning device?
Pronunciation: [wˈɔːnɪŋ dɪvˈa͡ɪs] (IPA) 
A warning device is any equipment or tool that provides caution, notice or alert to people of imminent danger, hazardous situations, or emergencies. Other synonyms for warning device include alarm, signal, siren, buzzer, whistle, or beacon. An alarm is an audible warning system that indicates an emergency or threat such as a fire alarm, burglar alarm or medical alarm. A siren is a loud sound signal usually used by emergency vehicles or ambulances to alert drivers to clear the road for them. A buzzer or beep is a simple warning sound, common in household appliances like microwave ovens or smoke detectors. A warning device is significant in enhancing safety and preventing accidents or disasters in homes, offices, and public places.
