Traditional smoke alarms will only do one thing
Fire safety is a chief concern for homeowners, and smoke detectors play an essential part in safeguarding your family. Even so, smoke detectors have various limitations. For example, they can only detect smoke, not high temps. If there is an emergency in your residence, you may not be alerted unless the smoke rises to the smoke detector. While there are further unmistakable signs of fire -- like a sudden increase in warmth -- if there's no smoke, there is no warning from your smoke detector.
What’s more, smoke detectors only activate when they detect an adequate amount of smoke. In the event a fire begins slowly, you might not be warned until it's too late. Many smoke detectors use dual sensors, which means they will recognize smoke from both a blazing inferno and a more gradual burn. Then when they sound their alarm, it’s required of the homeowner to contact emergency services after exiting the property.