Regular smoke alarms will only do one thing
Protecting your home from fire is important, and smoke detectors play an essential role in shielding your family. However, smoke detectors have some limitations. For instance, they can only react to smoke, not extreme temperatures. If there is an emergency in your residence, you might not be cautioned until the smoke rises to the smoke detector. Even though there are some other significant indications of fire -- such as a sudden heat increase -- if you don’t have smoke, there is no triggered smoke detector.
In addition, smoke detectors only sound the alarm if they detect enough smoke. In the event a fire creeps along slowly at first, you might not be cautioned until the situation is out of hand. Various smoke detectors employ dual sensors, meaning they will be able to perceive smoke from both roaring flames and a more gradual burn. If they start beeping, it's up to the homeowner to notify emergency services after safely leaving the property.