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52 of 56 people found the following review helpful
on August 7, 2013
There are two types of smoke detectors found in homes today: Ionization and Photoelectric. Ionization type detectors are installed in about 90% of homes and are more sensitive to flaming stage of a fire. Open (fast flame) fires account for the majority of house fires and injuries, but only 15% of fire fatalities. Ionization type detectors respond slower to smoldering fires and fail completely 20-25% of the time.
Photoelectric type detectors are more sensitive to smoldering stages of fires which account for 12% of fires, but 50% of fire fatalities and 30% of injuries. The majority of fire related deaths occur during smoldering fires while the occupants of the home are sleeping. In addition, all smoke detectors loose their sensitivity to smoke after 10 years, so all detectors over 10 years old should be replaced. I replaced all my detectors and these are very sleek and modern looking. They make very little visual impact and I recommend them to everyone. See the other review for the link to the Dateline piece on how bad ionization smoke detectors are.
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18 of 21 people found the following review helpful
on August 7, 2013
I did buy this from Amazon, I actually picked up like 4-5 of these from my local big box store. I've installed two so far and they seem pretty nice.

My only complaint it they picked a shallow head screw that was almost impossible to install over head with a drill screw driver. I tried several different sized Phillips head bits. The problem with everyone I tried was the tip of the bit will bottom out before the 4 sides of the Phillips head would fully fit in the screw head. This caused the screw and bit to want to wobble. Making it impossible to put any pressure on the screw to drive it in. Not sure why this is done other then maybe the base needs to be low profile.

Once I finally got the base mounted, the smoke detector did not want to fit into the base. This was because when I was driving the screw it got pushed off to the side and caused the base to not be 100% round anymore. So out the screw comes and I have to fight ever harder to get it to create a new hole just to side of the incorrect one. Just a pain.

Most screws have a deeper head that allow the bit and screw to form a good solid joint to allow the correct amount of pressure to be applied while driving the screw into wood.

Other than the issue with the screws, the units are very nice and look great when installed
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56 of 74 people found the following review helpful
on November 6, 2013
Though this listing says it is a three pack--for a discounted price of 43.97--you actually only get one of these smoke detectors!! While the vendor says it is Amazon's fault, they still haven't changed the ad, the detectors in Lowes cost 19.99 per unit, not 43 dollars. PLUS, when I went to return it, they claimed that 6 dollars of my price was for shipping and so will not be returned. Once again, buyer beware--this is not through Amazon directly so you are dealing with the store owners who pretty much can make up the rules as they go. I was really surprised by the difference in price when I found it online at Lowes--no explanation why this vendor has marked it up so dramatically, not fixed their very misleading ad and does nothing to make you feel like I would ever ever shop with them again.
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11 of 13 people found the following review helpful
on May 27, 2013
This is cool new technology. Watch the Dateline Report on this issue and you'll switch all your detectors to Photoelectric.
http://www.nbcnews.com/video/dateline/51320172#51320172
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3 of 3 people found the following review helpful
on January 25, 2014
I did not think anything so small would sound so loud. Let's hope it works as good as it looks.
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2 of 2 people found the following review helpful
on January 12, 2014
I bought one and received 3 detectors. I have since ordered 3 more packs and received 3 units in each order for each $62.63. These are Photoelectric as clearly stated , these are now recommended by most fire departments. Plus CO detectors are needed outside each bedroom and in each bedroom for the best protection. I have chosen to buy the CO detectors by themselves instead of one doing double duty. I also have purchased 4 wireless smoke detectors. Can't have to many is my thoughts. The Atom micro is the future. Really liked the Nest but waiting for more testing to be done.
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21 of 30 people found the following review helpful
on April 26, 2013
Bought this to replace constantly malfunctioning alarms that builder put in.

First of all, its much smaller than regular smoke detectors. It wont fit on any of my existing bases, this thing is like 4-5cm (1.5-2 inches?) diameter at the base. There are no hookups to external power or connections to other smoke detectors (like the ones I currently have installed). The base that comes with the unit calls for two holes in the ceiling, but I just used double-sided tape and it holds fine (this is small and light unit).

It is powered by lithium battery (read: long life, but expensive). Siren is LOUD. Tested, it works. Hopefully I wont have to review its performance in real-life situation :)
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2 of 2 people found the following review helpful
on January 10, 2014
These are great smoke and fire alarms. I've always used and had great luck with First Alert. These atom micro detectors also are much nicer looking in the rooms. They are not bulky looking like the other ones. I got these at a great price too.
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1 of 1 people found the following review helpful
TOP 500 REVIEWERon January 22, 2014
I tested these with long wooden matches and was able to trigger them. Unfortunately, there is no foolproof way to test them under real life conditions. So far, they haven't triggered from stove top or oven cooking, and my husband and I are the king and queen of burning things. He burns food, meat mostly, and he got a lot of false alarms until I switched to all photoelectric near the kitchen. He also got a lot of not so false alarms, because, sometimes when he burns the food, there is actual smoke involved. When I burn things, it's usually a pot or pan I've forgotten, and that's real smoke, too.

I read online that photoelectric alarms give fewer false alarms but trigger faster than ionization type alarms for smoldering fires. My experience with them has been that they are very reliable and fast at detecting actual smoke. Thankfully, I haven't had to test the assertion that the ionization alarms work somewhat better when there is open flame. I now have several of both types installed in my home, including two of the Nest talking alarms (which I also like a lot, but which cost like a zillion dollars and expire like any other alarm). These are more expensive as of this writing than the Kidde photoelectric alarm that I bought last year and also like a lot, but they are the size of a votive candle and are super easy to install. They also come with batteries, so factor that in with the cost.

All in all, I did not find a downside to these alarms. Good price. Seems to work. Unobtrusive. Batteries included.
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2 of 2 people found the following review helpful
on January 3, 2014
Very small and attractive Smoke & Fire Alarm that has extremely loud ear piercing sound that will alert you even when you are sleep.
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