First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery
- Brand:
- First Alert
- Model Number:
- 1039935
- UPC:
- 029054019653
- EAN:
- 0029054019653
- Walmart SKU:
- 630578226
Current pricing at $36.52 reflects recent market activity, running 0.0% below the 90-day average.
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$64.99 | |
|
Lowest Price
|
$28.78 | |
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Most Recent Price
|
$61.99 |
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$36.52 | |
|
Lowest Price
|
$12.00 | |
|
Most Recent Price
|
$36.52 |
Tracking History: We have tracked First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery since 11/26/2022. The most recent price update was on Jan 28, 2026.
Price Range: Over the past 90 days, the price has ranged from $12.00 (lowest on 6/22/2024) to $36.52 (highest on 12/16/2025). The average price during this period is $24.65.
Current Trend: No Walmart.com pricing data available for analysis.
Customer Insights: Rated 4.4/5 from 490 reviews.
i had to buy a replacement for the one that I bought in May because the company wouldn't honor the warranty because they didn't make that type anymore so I was out the money and the additional warranty that I bought because it just quit working so I did some research before I got this unit and right now I am very pleased with it not because it comes from a company of respect but a 10 year warranty also. the only thing that I don't like is that it works with a 9 volt battery and those are hard to find since everything runs on a triple A or double A or a C or D battery nowadays. besides that I am happy with it
The box arrived quickly, labeled as BRK First Alert and had a sticker that listed out each item on the exterior of the box. Each smoke/CO detector was in its own box inside. The individual boxes were labeled as BRK, so I originally thought the wrong item arrived, but the actual alarms say First Alert. They came equipped with Duracell batteries inside, which was a pleasant surprise. Easy to quickly install and ready to use right away. Each device is in working order and appropriately loud volume. I ordered 5, but will likely order more for the rest of our home. I was looking for a combo smoke and carbon monoxide detector and this is perfect for single device installation, which also makes our ceiling look less cluttered. Nice white color looks new, compared to the beige ones that came with our home when we purchased it. This is a reminder to write install date on the back upon installation so you can replace in the suggested 10-year timeframe.
These were in the house when we bought it and one kept beeping and after some research they go bad after so many years (Not sure how long they have been in the house). But, we like they are both smoke and carbon monoxide detectors.
I am so grateful for this purchase. My existing alarms failed on January 9 and I could not find any replacement locally. This alarm is perfect for my needs.
This was the cheapest dual carbon monoxide and smoke detector that I could find! It came to about $45! Which is absurd for a smoke detector. Even if I bought each separately at the cheapest price I could find, it would still cost more than this one. I originally went to Lowe's since I have a card there but they were even more expensive! It should be illegal to sell living saving stuff like this for so much money!
Bought this to replace my previous alarm which lasted ten years. Wanted the same model so I could slide it into the same ceiling mount. Although this is the older model, it cost slightly more than the new one. But worth it for ease of installation. Once I inserted the included 9V battery, it appears on and working.
The package was damaged and it looked like it had been used. It took a lot longer to arrive, then was originally told to me. The product itself is a good first alert smoke detector, but I believe the vendor sent me an old 2022 version of it which had been used. For $65 it was a total rip off.
This BRK Smoke and Carbon Monoxide Alarm was Dead On Arrival after trying to pull the tab. I do not recommend this alarm and the company.
Never received order. No further communication
This is the second defective smoke/co2 detector from this manufacturer. The first one had a defective plug socket. This one was missing the pins in the connector. Does anyone think they were tested before leaving the mfg process?
Detailed price history for the past 90 days
No Walmart.com pricing data available for analysis.
Third-Party Sellers prices have ranged from $36.52 (Apr 10) to $64.99 (Jun 13) over the past 90 days. Current price is 12.4% above the 90-day average of $55.17.
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| $39.99 | — | — |