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First Alert BRK SC 9120B Review
Last updated - April 2, 2026
Verdict overview
- worth the money 9.1
- Easy installation 9.6
- Precision 9.3
- Battery Duration 9.4
Pros
Durable plastic- Interconnectable
- Easy to install
Cons
Incorrect instructions, poor battery design.
Tech specs
| color | WHITE |
| usage | Indoor use only |
| batteries included | No |
| included components | First Alert SC9120B Combination Wire-In Single/Multiple Station Smoke and CO Detector 120V AC |
| alarm | Audible |
| product dimensions | 2.25D x 5.59W x 5.69H |
| shape | Round |
| batteries | 1 9V batteries required. |
| item weight | 10.4 ounces |
| voltage | 120 Volts |
| item package quantity | 1 |
| size | 1 Pack |
| material | Plastic |
| power source | Battery Powered |
| style | 10-year limited warranty |
| sensor type | Ionization |
| batteries required | No |
Product Overview
I recently had the opportunity to try out the FIRST ALERT BRK SC 9120B alarm. This product is an innovative, dual ionization smoke and carbon monoxide detector that is designed to alert you of potential danger in your home. It has a 10 year limited warranty, so you can rest assured that it will last for a long time.
The FIRST ALERT BRK SC 9120B comes with an easy to install universal mount bracket and a 9 volt battery included. It is also interconnectable with BRK and First Alert hardwired smoke and carbon monoxide alarms, so you can link all your alarms together for added safety.
The FIRST ALERT BRK SC 9120B features an advanced carbon monoxide sensor which is designed to detect dangerous levels of carbon monoxide in the air. The dual ionization smoke alarm also offers superior detection capabilities, so you can be sure that you will be alerted of any potential dangers in your home. Additionally, the alarm features a separate smoke and CO latching alarm indicators, so you can easily identify what type of danger is present in the air. The simple to use silence/test button allows for easy testing of the alarm anytime you want to check it for accuracy or functionality.
I was very impressed with the performance of this alarm overall. It works exactly as advertised and provides me with peace of mind when it comes to knowing my family is safe in our home. The product is great value for money, as it provides superior detection capabilities at an affordable price point. I highly recommend this product to anyone looking for a reliable smoke and CO detector that will provide years of use without any problems.
Overall, I have been very satisfied with my experience using the FIRST ALERT BRK SC 9120B alarm. It has been reliable and accurate every time I have used it, which has given me added peace of mind when it comes to keeping my family safe from potential danger. If you are looking for a reliable smoke and CO detector that won t break the bank, then this product may be exactly what you need!
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Frequently asked questions
- What type of alarm does this product have?
- What is the power source for this product?
- What is the included warranty?
- What are the dimensions of this product?
- What type of sensor does this product have?
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