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Kidde Smoke Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack, White, 30CUAR

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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Sep 14
Order within 10 hours and 37 minutes
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Style: 9th Edition


Size: 1 Pack


Features

  • 2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective detector.
  • HARDWIRED & 2 AA BATTERY BACKUP (Included): Operates on 120V AC wiring (installed in the ceiling) with 2 AA alkaline batteries that provide battery backup coverage during power outages.
  • ENHANCED SENSING TECHNOLOGY: Reduces false smoke alarms often caused by cooking. Comprehensively tested to meet the latest UL standards, meets UL 217 9th Edition, UL 2034 4th Edition, & FCC standards.
  • INTERCONNECT CAPABILITY: When one alarm sounds, they all sound, so you can get out faster. (Different models offer different interconnection options and requirements. See User Guide for more info.)
  • SELF-TESTING ALARM: Internal components ensure alarm is always operating as expected. Not a substitute for a manual push test, perform a button test once per week to verify alarm operation.
  • 3 LED NOTIFICATIONS: LED lights indicate alarm status, green = normal operation, amber = operating error, red = smoke or carbon monoxide detected & a loud 85-decibel alarm will sound.
  • TEST & HUSH BUTTON: Makes it easy to test the 5-inch combination detector and silence false alarms, should they occur.
  • 10-YEAR LIMITED WARRANTY: Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that alarms should be replaced.

Description

Experience the next level of fire safety with the Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators, model 30CUAR. This smoke & CO detector has enhanced sensing technology that reduces false alarms often caused by cooking and sends fast alerts that help give your family more time to get out safely. To detect carbon monoxide, an electrochemical sensor is used. This alarm offers a modern 5-inch design ideal for all living spaces such as living rooms, hallways, kitchens, & bedrooms. Comprehensively tested and designed to the latest UL standard for safety and reliability, the 5-inch smoke & CO alarm is powered by 120V AC wiring with 2 AA alkaline replaceable backup batteries (included) for continual detection even during outages. Batteries should be replaced every 6 months or when the alarm sounds a low battery chirp. In addition, it’s self- testing and easy to install with the included twist-and-click mounting bracket. This Kidde combination alarm is equipped with end-of-life notifications that will beep to remind you it’s time to replace it at the of its 10-year lifespan. Meets requirements of 9th Edition UL 217, UL 2034 4th Edition, FCC, and CSFM.

Brand: Kidde


Style: 9th Edition


Power Source: Hardwired


Color: White


Product Dimensions: 1.88"D x 5"W x 5"H


Item Weight: 10.46 ounces


Alarm: Smoke and Carbon Monoxide Detector


Operating Humidity: 10 to 95% relative humidity (RH), non-condensing


Upper Temperature Rating: 100 Degrees Fahrenheit


Sensor Type: Photoelectric, Electrochemical


Brand: ‎Kidde


Style: ‎9th Edition


Power Source: ‎Hardwired


Color: ‎White


Product Dimensions: ‎1.88"D x 5"W x 5"H


Item Weight: ‎10.46 ounces


Alarm: ‎Smoke and Carbon Monoxide Detector


Operating Humidity: ‎10 to 95% relative humidity (RH), non-condensing


Upper Temperature Rating: ‎100 Degrees Fahrenheit


Sensor Type: ‎Photoelectric, Electrochemical


Material: ‎Plastic


Number of Items: ‎1


Manufacturer: ‎Kidde


UPC: ‎047871328475


Part Number: ‎21032847


Item Weight: ‎10.5 ounces


Item model number: ‎30CUAR


Batteries: ‎2 AA batteries required. (included)


Size: ‎1 Pack


Shape: ‎Circular


Item Package Quantity: ‎1


Included Components: ‎2 AA Batteries, Alarm, Mounting Hardware, User Guide


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Date First Available: April 29, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Easy Installation, Work Well
These are relatively easy to install. They come with an adapter wire that I used. They do offer a false alarm delay feature if you can reach the button, however I have never tried that. They do include a test button which I have used. I haven't had these for very long but the original battery has been in there nearly a year. ... show more
Reviewed in the United States on August 23, 2025 by Frank J. Crow

  • As described.
Perfect replacement for my 10 year old alarms that died. Easy to install.
Reviewed in the United States on August 21, 2025 by Janie S.

  • Quality product.
Appears to be a very reliable devise. I have this particular combination alarm installed throughout my home & am quite pleased with my purchase.
Reviewed in the United States on August 24, 2025 by Debora

  • As advertised
The detectors work as expected. Installation was relatively easy. We had to change the wires from the previous detector to make it fit but wasn’t a problem. I will say, open the boxes when you receive them. We let ours sit around for a month and when we opened one box, there wasn’t a connection wire in the box. ... show more
Reviewed in the United States on July 24, 2025 by Kim Stewart

  • Silent, Reliable, and No More Mystery Beeps!
After finally finding out which smoke alarm was beeping at me like a tiny, relentless banshee, I ordered this as a replacement. It arrived quickly—faster than my patience was wearing thin—and installation was surprisingly easy. I’m no electrician, but even I managed to get it up and running without calling in reinforcements. The LED indicators are a nice touch, giving clear signals instead of the usual cryptic chirps that leave you questioning your life choices at 2 AM. It also syncs with other alarms, which is great for safety but slightly terrifying when testing them—like setting off a mini fire drill in your own home. Pros: ✔ Quick and easy installation ✔ Clear LED warning lights (no more mystery beeping!) ✔ Interconnects with other alarms for full-home protection ✔ Meets updated safety standards Cons: ✖ The alarm sound is intense (which is the point, but still… it will wake the dead) ✖ No option to silence minor false alarms quickly—toast lovers, beware Overall, it’s a solid upgrade that does its job well. If only it could also detect which alarm is beeping before I lose my sanity next time! ... show more
Reviewed in the United States on February 1, 2025 by Kindle Customer

  • Good reputable product
Easy to install. I replaced all of my smoke detectors in my house as they were original from 2003 I wanted one of the detectors to be a CO detector, so I ordered this one.
Reviewed in the United States on July 19, 2025 by Suzanne

  • Crappy Customer Service & Failed Unit after 6 months
These are trash. What’s worse is that Kidde customer support requires information like number of beeps, beep interval, and led flash sequence to determine what’s wrong with the unit. Moreover, their first line of defense is “what brand of batteries did you install in the device?” No joke. I bought this in April. It’s July. The unit was manufactured in April of 2024. The Kidde brand batteries promptly failed. I’ve replaced them with Ever-ready and it’s chirping again. The CSR asked me yet another ridiculous question about the issue and I reminded her that it’s outside a bedroom and it failed over the weekend. WHOOO LEAVES A CHIRPING AMOKE ALARM INSTALLED?! It seemed very clear after a 14 minute conversation that they don’t stand behind their products. I’m going to completely uninstall the base and buy a First Alert. IDK their customer service level but it can’t be worse. Take your chances on buying one of these Kidde products. Might be good. Might not and you’ll have thrown you money away. ... show more
Reviewed in the United States on July 21, 2025 by JSA

  • Works great
Works as described and should work. Syncs with all the other ones bought at the same time
Reviewed in the United States on August 24, 2025 by Akira

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