Traditional smoke alarms can only do one thing
Fire safety is a crucial consideration, and smoke detectors perform a vital role in keeping your family safe. Even so, smoke detectors have various drawbacks. For instance, they can only identify smoke, not extreme temperatures. When there is a blaze starting in your home, you may not be warned unless the smoke reaches the smoke detector. Although there are further unmistakable signals of fire -- including a sudden rise in heat -- if there's no smoke, there is no triggered smoke detector.
In addition, smoke detectors only activate when they detect enough smoke. In the event a fire begins slowly, you may not be alerted until it's too late. Some smoke detectors use dual sensors, which means they will be able to perceive smoke from both a raging fire and smoldering remnants. If they sound their alarm, it’s required of the resident to call the fire department after safely leaving the premises.