Regular smoke alarms will only do one thing
Protecting your home from fire is a crucial consideration, and smoke detectors play a critical role in safeguarding your family. Even so, smoke detectors have their drawbacks. For instance, they will only detect smoke, not high temps. If there is a fire in your home, you would not be alerted before the smoke rises to the smoke detector. Even though there are further significant signals of fire -- such as a sharp rise in heat -- if there’s a lack of smoke, you won’t have a sounding of your smoke detector.
In addition, smoke detectors only activate if they find enough smoke. In the event a fire starts small, you might not be alerted until it's too late. Various smoke detectors utilize dual sensors, which means they will be able to perceive smoke from both a blazing inferno and smoldering remnants. If they do go off, it's up to the homeowner to call the fire department after safely leaving the premises.