Regular smoke alarms can only do this one thing
Protecting your home from fire is important, and smoke detectors play an essential part in shielding your family. Despite that fact, smoke detectors have their limitations. For instance, they will only identify smoke, not extreme temperatures. If there is an emergency in your house, you may not be warned before the smoke ascends to the smoke detector. Although there are further significant indications of fire -- such as a sharp heat increase -- if you don’t have smoke, there is no warning from your smoke detector.
What’s more, smoke detectors only beep if they encounter an adequate amount of smoke. When a fire begins slowly, you might not be cautioned until the flames are out of control. Some smoke detectors employ dual-sensor technology, which means they will recognize smoke from both roaring flames and a more gradual burn. Whenever they start beeping, it's up to the homeowner to notify the fire department after exiting the property.