Features:

  • Keep your family safe with this battery operated smoke and carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
  • Features an electrochemical Carbon Monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection
  • Battery-operated unit installs quickly and easily without an electrician. Low battery signal mute, quiets low battery signal for up to 8 hours
  • Simple to use, with a single test/silence button; EZ access battery drawer allows you to change battery without removing alarm from ceiling
  • 7-year limited warranty; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety; all First Alert alarms are rigorously tested to meet UL standards
  • It can ship within the US except New York
Great!

Had one of these running for the last 2 years now. Only went off when we got a little carried away and accidentally burned some food! It's not annoying, it's intuitive, battery life seems excellent (orig battery still), easy to shut up, remove and re-attach to the wall, and it has the excellent carbon monoxide feature as well as both the Photoelectric & Electrochemical smoke sensors. Also has 7-year limited warranty from the manufacturer just in case. Not bad! These are smart enough to let you know that they are done after 7 years of use. At this point, the sensors are degraded and need to be replaced. No more 20 year old smoke detectors! Safety First!

A "must have" safety item if your house has gas appliances.

If you use natural gas or propane for heat, hot water, cooking or fireplace in your house, this is a "must have" safety item. Smoke detectors won't warn you if carbon monoxide gas (invisible and completely odorless) is present but this combination smoke and CO detector will. It takes just a few minutes to install and includes 2 long life, replaceable alkaline batteries. Check the instructions for suggestions on where to install it.

Glad I Bought This Detector

I have natural gas for heating my house and for cooking. My previous CO detector died after quite a long time of use. I think that CO detectors are a must have for homes or apartments that use natural gas. My son lives in an over-sized house that was converted into a few individual apartments, and in early December of 2018 the furnace began to vent CO into the building. A neighbor’s child was taken to the hospital and was treated for carbon monoxide poisoning. Luckily my son escaped without a problem. There were no carbon monoxide detectors in the building. Carbon monoxide is deadly if not detected in time. I feel secure knowing I have these detectors in my house. I test them once per week to verify that they are functioning. I hope you do the same.

Detects CO and smoke fine.

Well, they did their jobs...I had a fire in our fireplace that was almost out, down to the coals, so I closed the damper and went to bed. An hour later "BEEEBEEEBEEEBEEEP." I looked at the alarm, and the CO LED was flashing. Oops, I guess the coals weren't as dead as I thought. It woke me up and the wife. I've also had it alert to smoke from me accidentally letting a damper close while there was a full-on fire and smoke began to fill the room. Again...oops. I am glad to know they work, and, while I've been aware of the sources of my troubles so far, I am confident these will alert me if there is some real trouble happening.

Deduct Star or not?

I had to think this through thoroughly because it would be easy to mark down because of a few false alarms. There are two different technologies used in these detectors. I replaced my old detector, because although it detects fire more easily, the new one detects smoke more easily and although both are important, some feel that the technology that is more sensitive to smoke may be the better option. The new one definitely is more sensitive and occasionally will sound the alarm after wife gets out of the shower. She shuts the door and the alarm quickly shuts off after 2 or 3 beeeps. I bought it because it is more sensitive and I can't comfortably mark this product down, even with the occasional false alarm, because it is doing what it is suppose to do. Now, if I get one, just one, false alarm at night time, I will throw it in the garbage and change my rating drastically. I almost reverted to the older unit on the first false alarm until I thought it through.

Good Unit, Well Known Brand

I really like that this smoke detector includes Carbon Monoxide (CO) detection with it. The upside of this is that in replacing an old smoke detector, I now have extra protection against CO leaks. The downside of this is that this unit only lasts for approximately 7 years according to the user manual included with the unit. At roughly 7 years (which I assume is roughly as the unit does not have a precise time keeping setup), the detector will beep at your continuously until you replace it. Note that according to the user manual, you can silence this "End of Life" alarm for 2 days by pressing the button on the unit. So, you could continue using it so long as you tell it to be quiet every two days by pushing its buttons (pun intended). However, the "End of Life" alarm exists for a reason, and as many reviewers (and question answerers) on Amazon have noted, the CO detection functionality will have deteriorated such that you really need a new alarm. The quality of the unit seems good. It is made out of plastic, but seemly high quality and durable plastic. There is a mounting plate (also plastic) that you screw into a wall or ceiling and then the detector unit goes into that mounting plate and locks with a quarter turn. The test alarm sounds loud (which is a good thing for deep sleepers), and the use of AA batteries is a refreshing change. I hated buying 9V batteries just for the smoke detector. It is important to note that I did not evaluate the sensitivity of the CO detector nor experienced a smoky fire (or any fire), so this review assumes both of those listed functions would work properly. Also, I have only owned the product for ~ 1 month so I cannot comment on the reliability or lifespan of its operation. I can testify that I replaced a 30+ year old First Alert smoke detector that was (as far as I know from burning things in the kitchen) still working so I do have high confidence in their brand. I only replaced the old detector for a combination of two reasons: (1) I wanted CO detection and (2) the old one's plastic was yellowing. I think it is also important to point out (although it is well mentioned in the product page) that this detector is NOT for new-er construction homes that have interconnected smoke detectors (i.e. if your smoke detector has a plug in the ceiling that it plugs into).

Great product, easy to install and takes 2AA batteries

Pros: Takes 2 AA alkaline batteries (included). Smoke and CO sensing. Mute button. Loud alarm and clear voice notifications (Unless you are on drugs this thing will wake you up). Notifications tell you type and location of the danger. Unit is good for 7 years after the printed date on its back. Unit chirps when batteries are low. Batteries can be replaced easily (from a side sliding compartment, no need to unmount). Cons: It’s very sensitive (If you burn a toast it may beep). Final thoughts : Please replace batteries twice a year. Many people remind themselves to change their detector’s batteries by letting it coincide with daylight saving time. So when you change time please change batteries too. This detector is easy to install and does its job very well. As I mentioned it is very sensitive to smoke but I consider that to be a BIG plus. I have one detector in each bedroom and one in the kitchen. I highly recommend this unit.

Know the Difference between Alarm sensor types!

This Alarm is a “Photoelectric” plus carbon monoxide which is a good thing at good . I would only use a Photolelectric or Dual sensor , “Photo / ION” . This is regardless of the Carbon monoxide sensor capabilities. Do not rely on an “Ion” alarm to warn you of smoldering or smoke until it’s a breathing and moving fire. I tested both alarms myself with a smoke bucket, I was never able to trigger the ION alarm with smoke only in my test. Watch a few YouTube videos on the difference in alarm sensors.

I bought and installed several of these. There is ...

I bought and installed several of these. There is a base plate you need to screw into the ceiling, and then the detector is mounted on the plate. All detectors tested OK. They were all manufactured in Dec 17 and expire in 7 years.

Fast and easy install

Packaging: The alarm arrived in clear clam-shell packaging (yuck). In the shell was the alarm, 2 AA alkaline batteries, mounting screws, and instructions. I am a guy so who needs instructions. I am very satisfied with the packaging. Installation: Installation was a breeze. The two batteries were installed so I just had to push in the battery tray. The new alarm was replacing an old First Alert fire alarms that we have had for over 20 years. I now know you should replace alarms every 10 years. I removed the old alarm by loosening the mounting screws a couple turns, turning the old alarm to align the mounting holes and that was that. The new alarm has a base and alarm. The new base fit perfectly over the existing screws from the old alarm. Tighten the screws and the hard part is done. Then place the alarm over the mounting plate and give a 1/3 turn and you are done. Operation: After it were mounted I pushed the test button and the unit gave two sets of 3 beeps. Happy alarm. Observations: I have heard that the alkaline batteries provided last between one and two years. When they do wear out I will be trying Lithium batteries to see if they last longer. I tried Lithium 9V batteries in the old alarms and two out of four had corrosion on the positive terminal after one year. (P.S. the other three were new fire only alarms). The only time our fire alarms have ever gone off is when my bride has used them as a dinner bell. Alarm goes off = Dinner is done. PBJ for dinner tonight.

Full Reviews