Sign up with one click: Facebook Twitter Google Share on Facebook smoke detector Thesaurus Medical Acronyms Encyclopedia Wikipedia n. An alarm device that automatically detects the presence of smoke. Also calledsmoke alarm. American Heritage® Dictionary of the English Language, Fifth Edition. Copyri...
smoke detector, device used to warn occupants of a building of the presence of a fire before it reaches a rapidly spreading stage and inhibits escape or attempts to extinguish it. On sensing smoke the detectors emit a loud, high-pitched alarm tone, usually warbling or intermittent, and usuall...
Photo: An optical smoke detector. Smoke enters through the slits around the side, triggering an electronic horn, which sounds through the large circular opening on the right. The dark circle in the middle is a test button with a built-in LED that flashes to show the detector is working ...
While you should still routinely test the smoke detector, you won’t need to replace the battery for the life of the unit, which means you only need to invest once in this smoke detector for a decade of monitoring. The Kidde Worry-Free 10-Year Smoke Detector uses an ionization sensor opt...
Additionally, smoke detectors play a role in your home fire escape plan and it’s another reason why they need to be functioning properly. Remember, when your smoke detector sounds, you may only have a couple minutes to reach safety, so it’s important that you not only have a plan, but...
If your smoke, carbon monoxide, or combination detector alarms and you are not testing the unit, it is warning you of a potentially dangerous situation that requires your immediate attention. Make sure everyone in your home knows the sound of your smoke and CO alarms, and what to do if the...
These gadgets upgrade your existing smoke and CO detector with smart notifications. You very likely own one of them already. Here's how to get your original detectors connected quickly.
Smoke detectors incorporate two types of technology — ionization and electric — both of which often are combined for optimum protection. In ionization smoke detectors, a chamber contains two plates that generate an electric current. If smoke interrupts that current, an alarm sounds.Photoelectric smok...
Why Would a Smoke Detector Go Off Without Smoke? Okay, I'm at work and I get a phone call from my daughter. Our smoke detector had gone off for no apparent reason. Unfortunately, it is the type that runs off of house current and the only way to turn it off is to turn the breake...
Kidde Hardwired Smoke Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators, 4 Pack DETECTS SMOKE: Sounds a loud 85-decibel alarm when smoke is detected - 3 long beeps with red LED light flashing in time, repeating. HARDWIRED & 2 AA BATTERY BACKUP (Included): Operates...