--- product_id: 9001841 title: "BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White" brand: "first alert" price: "KD 28.30" currency: KWD in_stock: true reviews_count: 13 category: "First Alert" url: https://www.desertcart.com.kw/products/9001841-brk-sc9120ff-hardwired-smoke-and-carbon-monoxide-co-detector-battery store_origin: KW region: Kuwait --- # Interconnects up to 18 devices Battery backup for power outages 85dB loud alarm siren BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White **Brand:** first alert **Price:** KD 28.30 **Availability:** ✅ In Stock ## Summary > 🚨 Stay ahead of danger with the smartest, loudest, and most reliable home safety alarm! ## Quick Answers - **What is this?** BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White by first alert - **How much does it cost?** KD 28.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/9001841-brk-sc9120ff-hardwired-smoke-and-carbon-monoxide-co-detector-battery) ## Best For - first alert enthusiasts ## Why This Product - Trusted first alert brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Uninterrupted Safety:** Hardwired with 9V battery backup ensures 24/7 protection—even during power failures. - • **Dual Hazard Detection:** Advanced electrochemical CO sensor plus ionization smoke sensor for comprehensive threat coverage. - • **Smart Networked Alerts:** Connects with up to 18 compatible devices so your entire home sounds the alarm simultaneously. - • **Trusted Legacy & Reliability:** Backed by First Alert’s 10-year limited warranty and UL safety certification—industry-leading peace of mind. - • **Effortless Installation & Use:** Quick plug-in power connector, tamper-resistant locks, and a single test/silence button streamline setup and maintenance. ## Overview The First Alert BRK SC9120FF is a hardwired smoke and carbon monoxide detector featuring dual electrochemical and ionization sensors, an 85dB alarm, and a 9V battery backup for continuous monitoring. It interconnects with up to 18 compatible devices, offers tamper-resistant installation, and is UL certified with a 10-year limited warranty, making it a top-tier choice for comprehensive home safety. ## Description The BRK SC9120B hardwire combination smoke and carbon monoxide alarm detects two hazards with one simple unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas. It can be emitted by sources including gas or oil furnaces, gas clothes dryers, water heaters, fireplaces, wood stoves, charcoal grills, gas ranges, and space heaters. A clogged chimney, improper venting, and attached garages can also cause carbon monoxide accumulation. The BRK SC9120 hardwire combination smoke and CO alarm with battery backup includes these features: Quick plug in power connector for easy installation, 120 volt AC inter connectable (with maximum 18 compatible devices 12 other compatible smoke alarms + 6 compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. Automatically performs internal test of functionality. Latching alarm indicator which automatically identifies which unit initiated the alarm. Battery drawer lock and mounting bracket lock for tamper resistance. AC power indicator and alarm indicator light. Low battery warning "chirp" and missing battery tab. 9 volt battery backup for peace of mind during power outages. All BRK Electronics carbon monoxide alarms are listed to UL Safety Standard 2034 for residential carbon monoxide alarms. Includes 9 volt backup battery. 10 year limited warranty. Includes: One combination smoke and CO alarm, one 9 volt battery, and user’s manual.Hardwired combination CO smoke alarm features battery backup for constant monitoring. Review: Affordable home safety and protection. - Easy to replace an existing defective smoke/CO alarm. This seller had the best price than any other seller. Thank you! Review: Works well and installed in minutes. - Easy to install. ## Features - Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure - Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection. - 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 - Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected - Simple to use, with a single test/silence button, and side load battery compartment; Tamper resistant locking brackets and universal mounting brackets make installation easy - Rigorously tested to meet UL standards - Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety - First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00O8MVW12 | | Alarm | Audible | | Best Sellers Rank | #150 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Smoke & Carbon Monoxide Alarms | | Brand | First Alert | | Built-In Media | 1-Combination Smoke And Co Alarm, 10-Year Limited Warranty, 9-Volt Backup Battery, User's Manual. | | Color | White | | Customer Reviews | 4.7 4.7 out of 5 stars (26,849) | | Global Trade Identification Number | 00029054015341 | | Item Dimensions D x W x H | 1.9"D x 5.6"W x 5.6"H | | Item Type Name | First Alert BRK SC9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup | | Item Weight | 8 ounces | | Manufacturer | First Alert | | Manufacturer Warranty Description | 10 Year Limited | | Model Number | SC9120B | | Operating Humidity | 10-95% RH | | Power Source | Battery Powered,Hardwired | | Product Style | Standard Detection | | Sensor Type | electrochemical,ionization | | UPC | 029054015341 | | Unit Count | 1.0 Count | ## Product Details - **Alarm:** Audible - **Brand:** First Alert - **Color:** White - **Global Trade Identification Number:** 00029054015341 - **Item Weight:** 8 ounces - **Operating Humidity:** 10-95% RH - **Power Source:** Battery Powered,Hardwired - **Product Dimensions:** 1.9"D x 5.6"W x 5.6"H - **Sensor Type:** electrochemical,ionization - **Style:** Standard Detection ## Images ![BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White - Image 1](https://m.media-amazon.com/images/I/61vLvq86+rL.jpg) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Questions & Answers **Q: Why does this model contain the radioactive part? I am sure you are going to tell me that it is a trace amount and that it has all approvals...** A: The "radioactive part" is how it works. Don't like it? Don't buy it. Simple. As for false alarms, this unit with its "radioactive part" is actually much more likely to give false alarms that condition people to ignore them. It is also much less sensitive to the smoldering, smoke-producing fires that are more common in homes. That's why ionization detectors are no longer recommended in residential settings. Experts now recommend only photoelectric devices in homes, so if you have these, you should replace all of them with the SC7010B. **Q: Because its a combo alarm where is the best place to install it since smoke rises and carbon monoxide doesn't?** A: According to the National Fire Protection Association: Choose smoke alarms that have the label of a recognized testing laboratory.Install smoke alarms inside each bedroom, outside each sleeping area and on every level of the home, including the basement.On levels without bedrooms, install alarms in the living room (or den or family room) or near the stairway to the upper level, or in both locations.Smoke alarms installed in the basement should be installed on the ceiling at the bottom of the stairs leading to the next level.Smoke alarms should be installed at least 10 feet (3 meters) from a cooking appliance to minimize false alarms when cooking.Mount smoke alarms high on walls or ceilings (remember, smoke rises). Wall-mounted alarms should be installed not more than 12 inches away from the ceiling (to the top of the alarm). If you have ceilings that are pitched, install the alarm within 3 feet of the peak but not within the apex of the peak (four inches down from the peak). **Q: If the alarm goes off, how can you tell whether it's due to CO or fire if there is no voice alert?** A: I'm sure we'll all remember the number of beeps for each type of emergency, in an actual emergency, when we've been woken up in the middle of the night. I'll pay the extra $10 per detector and get the voice alert. I humbly suggest you do the same. **Q: What is the manufacture date on these items?** A: Your warranty starts at the date of purchase. Keep your receipt. Your 5 year shelf life starts the day you power it up. The expiration date is hard coded into the software and only starts the day you plug it in..... This is from BRK WEBSITE ## Customer Reviews ### ⭐⭐⭐⭐⭐ Affordable home safety and protection. *by B***Y on April 6, 2026* Easy to replace an existing defective smoke/CO alarm. This seller had the best price than any other seller. Thank you! ### ⭐⭐⭐⭐⭐ Works well and installed in minutes. *by G***T on February 22, 2026* Easy to install. ### ⭐⭐⭐⭐⭐ Reliability of smoke detector *by C***O on March 30, 2026* Excellent product; purchased replacements for the same product that failed after 18 years. ## Frequently Bought Together - FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White - BRK First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack - First Alert BRK 9120Bff-6 Hardwired Smoke Detector with Battery Backup, 6-Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.kw/products/9001841-brk-sc9120ff-hardwired-smoke-and-carbon-monoxide-co-detector-battery](https://www.desertcart.com.kw/products/9001841-brk-sc9120ff-hardwired-smoke-and-carbon-monoxide-co-detector-battery) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-18*