Traditional smoke alarms will only do this one thing
Protecting your home from fire is a chief concern for homeowners, and smoke detectors perform a vital part in shielding your family. Despite that fact, smoke detectors have their shortcomings. For instance, they can only detect smoke, not extreme temperatures. When there is an emergency in your residence, you might not be cautioned until the smoke rises to the smoke detector. Although there are additional telltale signs of fire -- including a sudden heat increase -- if you don’t have smoke, there is no sounding of your smoke detector.
In addition, smoke detectors only sound the alarm if they encounter an adequate amount of smoke. If a fire starts small, you may not be alerted until it's too late. Many smoke detectors use more than one sensor, meaning they will detect smoke from both a blazing inferno and smoldering remnants. Then when they start beeping, it's up to the resident to contact emergency services after exiting the property.