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We tested the detection capabilities of each smoke detector in our comparison by spraying test smoke from an aerosol can directly at each one from 5, 10 and 15 feet away. When we tested the 5 and 10 foot mark, the Nest Protect sounded its alarm after 18 seconds. At 15 feet, the alarm activated at 28 seconds. It should be noted that Nest Protect was the only smoke detector that passed all of our detection tests. Half the devices could not detect our test smoke from 10 feet away and only Nest Protect sensed danger from the 15 foot mark. All smoke alarms feature a loud blaring tone to alert you to potential dangers in your home.

Posted March, 2011 by Admin

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Free replacement alarms are available for defective units; you can find more information at the Kidde web site. If your home lacks a hardwired network of interconnected smoke detectors, and tackling the job of wiring a whole house smoke alarm system is too much for your DIY skills or contractor budget to allow, stand alone battery operated smoke detectors remain a reasonable second choice. Tops among these is the First Alert SA320CN Est. $20, a dual sensor, battery powered smoke detector that earns positive feedback overall. It's been tested by Consumer Reports, and earns the top rating for detecting both smoldering fires and flaming ones, though not a recommendation presumably because it cannot be interconnected with other alarms. User reviews are positive, including a 4. 6 star rating at Home Depot, and recommendations from 98 percent of the nearly 100 owners that leave reviews. The ionization/photoelectric sensor smoke alarms above use standard batteries. However, they are inappropriate for those who live in a state or city that requires that battery operated smoke detectors be powered by sealed 10 year batteries. In that case, we suggest the First Alert SA3210 Est. $50.

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However, several researchers have pointed to methodological problems associated with this research literature.

Like stand alone motion detectors, these can activate when you’re away from home or whenever you choose.

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Posted February, 2011 by Admin

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