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SITERWELL Hardwired Interconnected Smoke Detector Carbon Monoxide Detector Combo with 2 AA Batteries Back Up, 2 in 1 Smoke and CO Detector with Voice Alert, Smoke and CO Alarm with Self-Check, 3 Pack

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$128.99

$ 59 .99 $59.99

In Stock

1.Size:1-pack


2.Style:Hardwired Interconnected Model


About this item

  • WIRED OR WIRELESS CONNECTION - This smoke and carbon monoxide detector can be hardwired or wirelessly connected to up to 12, so when one alarm is triggered, they all sound and notify everyone of the emergency.
  • HARDWIRED AND 2 AA BATTERY BACKUP INSTALLED - The combination of smoke and carbon monoxide detectors can be connected for use in addition to the 2 AA battery backup. When the power goes out in your house, the detector will still keep you safe.
  • 2 IN 1 PROTECTION WITH UNIQUE VOICE ALARM - This combination smoke and fog detector with dual sensors detects smoke and carbon monoxide hazards in a single unit, providing an audible warning in excess of 85 decibels. In addition, the unique voice alert lets you quickly understand whether smoke or carbon monoxide is present, allowing you to avoid scenarios in a more organized manner.
  • SELF CHECK FUNCTION - This SITERWELL smoke detectors and CO combination detectors have a self-check feature that replaces manual testing. When a detector fails to work, it will notify you as soon as possible to ensure you are effectively protected.
  • HIGH QUALITY ASSURANCE - The combination detector has a 10-year sensor life and a reliable, high-performance chip to provide you with powerful protection. Products meet UL 217 and UL 2034 standards to ensure peace of mind.



Product Description

Interconnected Smoke Detector Carbon Monoxide Detector Combo
smoke carbon monoxide detector
  • Yes It can, because it has 2 AA batteries for backup and operates normally even without wiring.

  • Yes, the detector supports wireless interconnection. But for the stability of the interconnection network, we recommend using wired interconnection.

  • 12 PCS

  • No, because the detector is too large and heavy, and easy to fall off using the magnet sheet installation.

  • If AC combo detectors sound low battery warning, please press the test button 3 times in 2 seconds to clear the memory mode, and it will solve the problem.


Swiss Xpat
Reviewed in the United States on January 26, 2025
Consumer Reports Top rated smoke/CO alarm, easy to install
dave shippee
Reviewed in the United States on January 22, 2025
Product works well with other alarms linked
Sharon Cave
Reviewed in the United States on January 1, 2025
My husband had gotten a box of these to replace our old detectors and this order was a replacement for one of those. This one began saying smoke detector alert continuously. The company sent a new one out and we just plugged it in. So far so good. The dogs are thankful it works and we are as well. Very scary to have those things go off without reason. Thank you for sending a new one.
Ms. Parker
Reviewed in the United States on December 31, 2024
I like this product but wish I had sprung for an alarm that can tell the difference between a real fire and just kitchen cooking. I have had to open the windows and put a fan on the floor just to keep it from going off every time I cook something on the stove. I recently purchased a portable stove hood and as long as I turn that on, the alarm does not go off. My husband loves the sensitivity though, so that's a win.
Kris Murray
Reviewed in the United States on November 16, 2024
We installed these in our brand new home. They were constantly going off. We would even put new batteries in and they would say low battery within 30 seconds. We thought we got a faulty set and ordered another set of these and they were worse all of them said low battery as soon as they were newly installed with fresh batteries. We even switched batteries brands to see if that was the problem. These are absolute junk!! Crazy expensive also for NEVER working! Couldn’t return because we ordered them and installed a few months later. Hoping to save others from the same mistake!
J. Michael Hitt
Reviewed in the United States on November 10, 2024
As a hearing aid user, I typically cannot understand the electronic voice messages issued from small electronic devices. The Siterwell smoke alarm/CO detector is an exception. The device's 'voice' instructions and messages are clear, loud and easily understandable, making it much safer and more user friendly than the typical alarm.Installation was perhaps slightly more difficult than other smoke alarms in that there is a true 'up and down' for this device. The imprint of a house on the cover means there is a defined vertical marker (the peak of the house roof) so if you are planning on re-using a hole from a previous device, chances are you won't be able to use it. Plan on drilling new holes to install this one...there's no fudge factor, it's got to be straight up and down to look right, although if you don't care about vertical symmetry, then install it whatever way fits your existing holes.
Yessi2011
Reviewed in the United States on November 1, 2024
My husband connected these alarms. We live in a small home so the sound is super loud I guess it's a good thing. I love to heat up jalapeños in our Comal so it's very sensitive to the heating smokes up easily and these alarms are super sensitive. To turn it off just press the middle button with a broom
Angela Peters
Reviewed in the United States on May 3, 2023
Update: The seller contacted me to resolve my issues. Their customer service was excellent. They are small but discrete and have option for adhesive or screws. I really appreciate the customer service.Buyer Beware! I purchased 6 and they are a sealed 10 year battery and one went bad in three months. There was no number to contact about this situation. They are small and compact. I hope the other 5 last. The good news it wasn’t expensive.
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