Regular smoke alarms can only do this one thing
Protecting your home from fire is a crucial consideration, and smoke detectors perform a vital part in shielding your family. Despite that fact, smoke detectors have some limitations. To illustrate, they will only react to smoke, not heat. When there is an emergency in your residence, you might not be alerted until the smoke rises to the smoke detector. Even though there are further telltale indications of fire -- like a sudden heat increase -- if there's no smoke, you will fail to get a triggered smoke detector.
What’s more, smoke detectors only sound the alarm when they encounter enough smoke. In the event a fire begins slowly, you may not be alerted until the flames are out of control. Many smoke detectors employ dual-sensor technology, meaning they will detect smoke from both roaring flames and smoldering remnants. If they sound their alarm, it’s required of the resident to notify the fire department after safely leaving the premises.