A fireplace alarm is a tool that detects smoke or warmth and sounds an alarm to warn individuals in a constructing that there’s a hearth. Hearth alarms are an necessary a part of hearth security, and so they will help to save lots of lives by giving individuals sufficient time to evacuate a constructing earlier than it’s engulfed in flames.
There are a lot of various kinds of hearth alarms, however all of them work on the identical fundamental precept. When the alarm detects smoke or warmth, it sends a sign to a management panel. The management panel then sounds an alarm all through the constructing, warning individuals to evacuate.