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g. , a doorbell press, a door knock is detected within the time window. In accordance with an action being detected within the time window, a first type of response is initiated. Examples of the first type of response include sending a first type of
notification to a user of a
client device. In accordance with no action being detected within the time window, a second type of response is initiated. Examples of the second type of response include sending a second type of notification to a user of a client device.
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It’s intuitive to install and its high compatibility with third party products is a huge selling point as well. The only gripe we have is the
relatively short warranty. The smoke sensor in the Nest Protect is different than any other smoke alarm we've looked at. The unit uses a split spectrum sensor, a special type of photoelectric sensor, which is designed to detect both smoky and flaming fires. The Nest Protect also has a built in a carbon monoxide sensor and will sound an alarm if it detects dangerous levels of the invisible, odorless gas which can be lethal if you breathe it for too long. To help cut
down on false alarms from steam and burnt toast, the Nest Protect also uses humidity and heat sensors. 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.