This Fire Alarm button is a kind of specialized conflagration set used for artificial start in the system of self-motion conflagertion. Eyewitness only need to broke face-place glass of conflagration button in strength.Then can make conflagration signal sending to the controller and give out the part of conflagration.At one time,can use to start of conflagration.At one time,can use to start conflagration equipment of message indicator, alarm bells straightly etc.