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Description
Battery Operated Smoke and Carbon Monoxide Combination Detector with Wire-Free Interconnect and Voice Alarm (2-pack)The Kidde 2 in 1 Battery Operated Wire Free Interconnected Combination Smoke and Carbon Monoxide Alarm with Voice provides two important safety devices in a single unit. The alarm is powered by 3 AA batteries and features a voice alarm that warns of smoke or carbon monoxide danger. The voice alert also lets you know when it's time to replace your batteries. This alarm features wire free interconnectivity with other Kidde KN COSM B RF units (up to 12
The Kidde 2-in-1 Battery Operated Wire-Free Interconnected Combination Smoke and Carbon Monoxide Alarm with Voice provides two important safety devices in a single unit. The alarm is powered by 3 AA batteries and features a voice alarm that warns of smoke or carbon monoxide danger. The voice alert also lets you know when it's time to replace your batteries. This alarm features wire-free interconnectivity with other Kidde KN-COSM-B-RF units (up to 12 total). If one unit is triggered, all interconnected alarms will sound. Wire-free interconnectivity allows for easy interconnect setup and eliminates the need for expensive rewiring. You can even install this smoke detector in a detached garage or workshop and be alerted by another detector in the house..- Powered by 3 AA alkaline batteries for continuous protection, even during power outages
- UL # 900-0225-RF
- Voice alert tells user to if the battery is low
- Voice alarm announces "Fire! Fire! Fire!", when a smoke or fire hazard is detected and announces "warning! carbon monoxide" when a CO hazard is detected
- Smart touch button temporarily silences nuisance alarms, low battery chirps, and tests the operation of the unit and interconnected units
- Internal timer reminds you to replace your unit after 10 years to ensure the most reliable protection
- Ionization sensor may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms
- Interconnect is not required; this alarm also functions as a stand-alone Smoke and Carbon Monoxide detector
- 10-year limited warranty
- UL/CSFM ref.UL # 900-0225-RF
- *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
- Smoke and carbon monoxide detectors utilize an ionization sensor to detect fire hazards and sound an 85 db alarm when a hazard is detected
- UL/CSFM Ref. Kidde Part KN-COSM-B-RF
Features
| Item Weight | 2 |
| Alarm Type | Carbon Monoxide,Smoke |
| Connector/Contact Type | None |
| Pack Size | 2 |
| Alarm/Detector Features | Hush Feature,Interconnected,Value Pack,Voice Alert,Wire-free Interconnect |
| Hub Required | No hub connection available |
| Commercial/Residential | Residential |
| Included | Batteries |
| Returnable | 180-Day |
| Battery Type Required | AA |
| Requires Hub? | No Hub Required |
| Power Options | USB Connector |
| Voltage (volts) | 4.5 |
| Remote Access | No Remote Access |
| Alarm Sensor Type | Ionization |
| Fixed or portable | Fixed |
| Works With | No additional compatibility |
| Smart Home Protocol | Wi-Fi |
| Power Source | Battery |
| Voice Control Hub Required | No Voice Control |
| Product Height (in.) | 6 |
| Product Width (in.) | 6 |
| Product Depth (in.) | 1.75 |
| Certifications and Listings | UL Listed |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Well built
Color: Rustic Brown
Very nice shelving. We remodeled our bathroom and they fit perfect behind toilet
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Reviewed in the United States on May 14, 2026
★★★★★ 3
Damaged Product
Color: White
Item has some parts of the board being damaged. The quality of the wood is not good.
Very disappointed.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Stylish and very functional for a primary bathroom
Color: C. Black, Color: C. Black
I installed these shelves in my primary bathroom and I’m very happy with the result. The design is clean and modern, and it helps keep the space organized without looking cluttered. I really like the combination of the solid shelf and the wire basket—it’s perfect for storing towels, toilet paper, and a few decorative items.
The materials feel sturdy and well made, not cheap or flimsy. Installation was straightforward and didn’t require anything complicated. It definitely upgraded the look of my bathroom and made better use of the vertical space.
Great option for a primary bathroom if you want both function and style. I would recommend it.
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Reviewed in the United States on January 22, 2026
★★★★★ 5
Sleek and Minimalist Bathroom Shelf
Color: A. Brown, Color: A. Brown
I recently got this bathroom shelf, and I love it! The minimalist design looks super clean and modern, and it fits perfectly in my bathroom without taking up too much space.
The build quality is great—it feels sturdy and well-made, and it holds my toiletries easily. Installation was simple, and it really helps keep things organized.
Overall, it’s a stylish, practical addition to any bathroom. Highly recommend!
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Perfect Rustic Touch for Our Bathroom Makeover!
Color: A. Brown, Color: A. Brown
We were redoing our bathroom and wanted a more rustic, farmhouse vibe and this shelf set absolutely delivered! As soon as I saw it, I fell in love with the design. The color (we chose Rustic Brown) is warm and charming, and it instantly made our bathroom feel cozier and more put-together.
Installation was super easy! The shelves are sturdy and well-made, with invisible brackets that give a clean, floating look. I especially love the metal basket; it holds several rolls of toilet paper and still looks decorative. The included sign is a cute bonus and adds a nice finishing touch.
The depth of the shelves is perfect for holding toiletries or small decorations without sticking out too far. It really maximized the space over our toilet and helped us stay organized without sacrificing style.
Overall, this set exceeded our expectations. It looks amazing, feels durable, and totally transformed our space. Highly recommend!
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Reviewed in the United States on July 21, 2025