visible alarm
1car alarm — noun An audible and often visible alarm that is activated when a motor car/automobile is tampered with …
2Fire alarm system — An automatic fire alarm system is designed to detect the unwanted presence of fire by monitoring environmental changes associated with combustion. In general, a fire alarm system is either classified as automatic, manually activated, or both.… …
3Harassment, alarm or distress — In English law, Harassment, Alarm or Distress forms part of the Public Order Act 1986 (amended by the Criminal Justice and Public Order Act 1994) under sections 4A and 5. Provisions of the lawThe Public Order Act 1986, Section 5 states::(1) A… …
4Fire alarm notification appliance — A Wheelock MT 24 LSM electronic fire alarm horn and strobe. A fire alarm notification appliance is an active fire protection component. A notification appliance may use audible, visible, or other stimuli to alert the occupants of a fire or other… …
5Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …
6Multiple-alarm fire — One alarm, two alarm, three alarm fires, or higher, are categories of fires indicating the level of response by local authorities, with an elevated number of alarms indicating increased commitment of resources. The term multiple alarm is a quick… …
7Manual fire alarm activation — Single action pull station. A manual call point in the UK …
8Intentional Harassment, Alarm or Distress — In English Law Intentional Harassment, Alarm or Distress forms part of the Public Order Act 1986 under section 4A. The Public Order Act 1986 s.4A states:1) A person is guilty of an offence if, with intent to cause a person intentional harassment …
9Fog alarm — Fog Fog (f[o^]g), n. [Dan. sneefog snow falling thick, drift of snow, driving snow, cf. Icel. fok spray, snowdrift, fj[=u]k snowstorm, fj[=u]ka to drift.] 1. Watery vapor condensed in the lower part of the atmosphere and disturbing its… …
10fire alarm — /ˈfaɪər əlam/ (say fuyuhr uhlahm) noun 1. a visible or audible signal that a fire has started; sometimes indicating other hazards, as chemical pollutants, asbestos, etc. 2. an apparatus for giving this signal …
