KnowraFire alarm systemLinked fromLinked fromThe 7 pages that link to Fire alarm system, each with the reason it gives.All 7Broader topic 1Related 3Narrower topic 1Compared with 2Church bellCompared with: Before electronic alarms, church bells could warn a town of fire.Fire extinguisherCompared with: An alarm alerts people but does not itself discharge an extinguishing agent.