Regular smoke alarms will only do this one thing
Fire safety is important, and smoke detectors take on an essential role in safeguarding your family. However, smoke detectors have some limitations. For instance, they can only identify smoke, not heat. When there is a blaze starting in your house, you would not be warned until the smoke ascends to the smoke detector. While there are some other significant signs of fire -- including a marked increase in warmth -- if there’s a lack of smoke, you will fail to get a warning from your smoke detector.
Additionally, smoke detectors only activate when they encounter enough smoke. In the event a fire begins slowly, you might not be alerted until the flames are out of control. Many smoke detectors employ more than one sensor, meaning they will recognize smoke from both a raging fire and smoldering remnants. Whenever they sound their alarm, it’s required of the homeowner to contact emergency services after exiting the residence.