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First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm EXPIRED

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Amazon.com has First Alert 2-In-1 Z-Wave Smoke Detector & Carbon Monoxide Alarm on sale for $33.99. Shipping is free. Thanks kjg291
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Z-Wave compatible smoke and carbon monoxide alarm that alerts you whether you are home or away. Meets UL standards and backed by a 7-year limited warranty.

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Edited October 18, 2017 at 06:38 AM by
First Alert 2-in-1 Z-Wave Smoke Detector & Carbon Monoxide Alarm - $33.99 + Free Shipping @ amazon.com [amazon.com]
  • Z-wave compatible smoke and carbon monoxide alarm. First Alert Z-Wave Detector - NOT WINK compatible
  • Wireless connection to z-wave hub (not included)
  • Reliable electrochemical co and photoelectric smoke sensors
  • Features single button test/Silence and side-access battery drawer
  • Meets UL standards and backed by 7 year limited warranty
  • Certified for use with Nexia Home Intelligence or other Z-Wave systems
  • Combination Smoke and Carbon Monoxide protection that alerts you whether you are home or away
  • Photoelectric smoke sensor helps reduce false alarms such as from cooking or shower steam
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100% inaccurate.

https://nest.com/support/article/...-the-floor
Carbon monoxide (CO) is slightly lighter than air, so carbon monoxide alarms are effective when placed on the ceiling or high up on a wall. You should install Nest Protect according to the guidelines in the User's Guide that came with it.

There's a myth that carbon monoxide alarms should be installed lower on the wall because carbon monoxide is heavier than air. In fact, carbon monoxide is slightly lighter than air and diffuses evenly throughout the room.

According to the carbon monoxide guidelines of the National Fire Protection Association (NFPA 720, 2005 edition), all carbon monoxide alarms "shall be centrally located outside of each separate sleeping area in the immediate vicinity of the bedrooms," and each alarm "shall be located on the wall, ceiling or other location as specified in the installation instructions that accompany the unit."

Why CO alarms are often installed near the floor

Standalone carbon monoxide alarms are often placed low on the wall because they need to be plugged into an outlet that's near the floor. CO alarms can also have a screen that shows the CO level and needs to be at a height where it's easy to read.
7 Helpful?
No. CO is slightly lighter than air (atomic masses: CO = 28, O2 = 32), but in a normal environment will be distributed relatively evenly.

https://nest.com/support/article/...-the-floor
5 Helpful?
Yes. But the best I can tell one can not tell via SmartThings if alarm is due to smoke or CO. It will still alarm, but if someone wanted to automate vents for example during CO alarm, I am not sure if it is possible. (Whereas adding air during a smoke even might cause a flash fire.) I just have mine sound 'master' siren, and unlock the doors if it goes off.
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#3
Got 4 of these to install in our house once we close...only like $0.30 more than the last deal.
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#4
Can someone help me confirm my understanding that this is not a hard wired detector so it cannot be combined with group of non z-wave detectors with the expectation of triggering when any of the detectors go off? Does anyone know of a detector or solution which would accomplish z-wave connectivity without needing all detectors to be z-wave?
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#5
Hopefully these are better than the HomeKit ones. I heard those are horrible.
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#6
Wasn't this cheaper before? Thought they normally went for this price.
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#7
Based on customer questions on Amazon, it looks like this is purely a wireless solution i.e. this detector is not capable of being connected to a wired system.

Depending on your wired system, there may be a way to trip a Z-Wave input device to set off the Z-wave detectors when the wired are tripped AND a Z-wave relay module to set off the wired detectors when the Z-wave detectors are tripped.
Not pretty, but there probably is a way.
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#8
Thanks, got two for my new house
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#9
Quote from B34N
:
Can someone help me confirm my understanding that this is not a hard wired detector so it cannot be combined with group of non z-wave detectors with the expectation of triggering when any of the detectors go off? Does anyone know of a detector or solution which would accomplish z-wave connectivity without needing all detectors to be z-wave?
You are correct. This is not a hard wired detector and will function independently of your hardwired smokes. I have not seen any hardwired detectors that are compatible with z-wave yet, however there is this relay you can get that you could then wire to a zwave sensor (like a door sensor). When the wired smokes go off, it will send a signal that will trip the sensor which you could then have alert you. This is on my list of things to try but I haven't yet. There are a bunch of posts out there of people who have done this if you google it. https://www.amazon.com/Kidde-SM12...B001AYERC2
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#10
According to the amazon page, these are NOT Wink compatible... 😞
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#11
Work with Samsung ST?
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Quote from phydeaux86
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Work with Samsung ST?
yes, i have 2 and are very easy to get set up on ST
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#13
These work great with avVera controller. It creates both a smoke and CO device that can be used as triggers.

Note that these are LOUD! Which to me is a good thing....
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#14
I have a bunch of these, and just bought another one.

My only issue with them is that the battery status doesn't report to the hub often enough. So far every time I have had one with a low battery chirp, SmartThings is still reporting 80%+ battery. Also they are difficult to get out of test mode.

Otherwise, they seem to work.
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#15
Quote from phydeaux86
:
Work with Samsung ST?
Yes. But the best I can tell one can not tell via SmartThings if alarm is due to smoke or CO. It will still alarm, but if someone wanted to automate vents for example during CO alarm, I am not sure if it is possible. (Whereas adding air during a smoke even might cause a flash fire.) I just have mine sound 'master' siren, and unlock the doors if it goes off.
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