Traditional smoke alarms can only do this one thing
Defending against fire is a crucial consideration, and smoke detectors perform a critical part in shielding your family. However, smoke detectors have various drawbacks. For instance, they can only identify smoke, not extreme temperatures. When there is a blaze starting in your residence, you may not be cautioned until the smoke ascends to the smoke detector. While there are additional unmistakable signs of fire -- like a marked heat increase -- if there's no smoke, you will fail to get a sounding of your smoke detector.
What’s more, smoke detectors only beep if they encounter an adequate amount of smoke. In the event a fire creeps along slowly at first, you might not be alerted until the flames are out of control. Various smoke detectors employ more than one sensor, meaning they will be able to perceive smoke from both a blazing inferno and something less intense. If they start beeping, it's up to the resident to contact the fire department after exiting the residence.