FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement

Installed easy and works good.

[This review was collected as part of a promotion.] The First Alert smoke and carbon monoxide detector was relatively simple to install. It came with several of the most common standard alarm wiring harnesses which eased installation. It comes with a ten year battery back-up which adds a very nice, worry free feature to the alarm. The alarm itself is very loud and seems as though it would be more than effective in the event of a fire. The fact that it's hard wired to the rest of the detectors in the house is a definite plus. We have decided to switch out all of the smoke detectors with more of these.

[This review was collected as part of a promotion.] Having my home protected is one of the most important things to me! We have a family of five in our home and with three kids we need to make sure that if there is an emergency we are alerted as soon as possible. This smoke and carbon monoxide detector is hardwired into the house so its always on and if the power is off the backup battery kicks in and keeps it on and working properly. The back up battery in a 10 year lithium battery meaning you should never have to buy or change the battery! We installed the smoke detector in less than five minutes and were immediately able to test it out. The sound is loud and can alert the whole house since it sits in the middle of our home. I feel confident that if an emergency should ever happen we will be prepared and ready to evacuate the home quickly. I highly recommend this smoke and carbon monoxide protector to keep you family and home safe at all times!

[This review was collected as part of a promotion.] We are very happy with this First Alert combination smoke and carbon monoxide detector. We bought it to replace a faulty one in our new home. We loved that it could just plug into the already hard wired set. The battery backup gives us some piece of mind in the power goes out (and that happens from time to time). We have a number of units already in our home but we think we are going to replace them with this combination units. Affordable and easy to install, you can't go wrong with this product!

[This review was collected as part of a promotion.] I have been needing one of these smoke and carbon monoxide detectors for some time now since my previous one stopped functioning and I'm really impressed with this one so far I love that it has battery backup just for the Peace of mind and it was incredibly simple for me to install it seems very well built and does not feel cheaply made and you know this is one of those things you never think about untill you wish you would have so If your in the market for one of these I highly recommend you try this one trust me it's worth it

[This review was collected as part of a promotion.] This first alert carbon monoxide and smoke detector in one works out very well, the packaging and the instructions are very easy to read knowing I had no issue hardwiring it whatsoever, the alarm is not overbearing and you are able to hear it all over the house and I would highly recommend this first alert product to anyone looking for a carbon monoxide or smoke detector. From my previous history of buying first alert products I knew this would be a no hassle install and use from the moment I purchased it.

[This review was collected as part of a promotion.] This was my first big girl purchase for my apartment and it was so easy to install! I love that it detects for smoke and carbon monoxide and that it was hardwired. Hopefully it never has to alert but if it does I trust it will notify me in enough time to take action. 10/10 would recommend this product! If you're debating on it this is your sign to go do it! This was my first big girl purchase for my apartment and it was so easy to install! I love that it detects for smoke and carbon monoxide and that it was hardwired. Hopefully it never has to alert but if it does I trust it will notify me in enough time to take action. 10/10 would recommend this product! If you're debating on it this is your sign to go do it!

[This review was collected as part of a promotion.] After building our home and having the smoke and carbon monoxide detectors hardwired in, I highly recommend doing so. The battery backup is a wonderful feature for those just in case moments should the power go out. We have multiple detectors throughout our home and it's very convenient to change the batteries. Should you need assistance, First Alert is very helpful and kind. They have their customer's best interests in mind and that is very comforting. Nevertheless, I highly recommend First Alert hardwired smoke and carbon monoxide detectors. You won't regret it.

Excellent, keep up the good work.

The online ad for this smoke alarm indicated -- both in writing and with the pictures -- that this alarm came with three adapters to ensure the buyer's ability to install it easily without further purchases. It did not come with three adapters, just one, and it was not the one I needed. I returned the alarm and was issued a refund. I'm sure the alarm itself is good, but I needed the correct adapter -- which costs another $25 dollars bought separately.