A hearth 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 vital a part of hearth security, they usually may also help to avoid wasting lives by giving individuals sufficient time to evacuate a constructing earlier than it’s engulfed in flames.
There are numerous several types 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.