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Kidde

Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Interconnectable LED Warning Light Indicators, 30CUA10

  • Based on 613 reviews
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Availability: In Stock.
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Arrives Jan 4 – Jan 5
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Size: 1 Pack


Features

  • 2-IN-1 DETECTION: Alerts you to both smoke and carbon monoxide (CO) using a single detector.
  • HARDWIRED and 10-YEAR BATTERY BACKUP: Operates on 120V AC wiring (installed in the ceiling). No battery changes for 10 years and saves up to 40 Dollar over the life of the detector.
  • 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, and 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.

Description

Experience the next level of fire safety with the Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Interconnectable LED Warning Light Indicators, model 30CUA10. 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 a 10-year built-in lithium battery, so you never have to change a battery for the life of the detector (not a battery performance claim). 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: Detector


Power Source: Hardwired


Color: White


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


Item Weight: 10.35 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: ‎Detector


Power Source: ‎Hardwired


Color: ‎White


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


Item Weight: ‎10.35 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


Global Trade Identification Number: ‎36


Material: ‎Plastic


Number of Items: ‎1


Manufacturer: ‎Kidde


UPC: ‎047871328536


Part Number: ‎21032853


Item Weight: ‎10.4 ounces


Item model number: ‎30CUA10


Size: ‎1 Pack


Shape: ‎Circular


Item Package Quantity: ‎1


Included Components: ‎Alarm, Mounting Hardware, User Guide


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Lithium Ion


Date First Available: April 29, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jan 4 – Jan 5

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

    • Kidde Hardwired Smoke & Carbon Monoxide Detector
Size: 1 Pack
Installed the Kidde hardwired smoke + CO alarm and it works exactly like it should. The 10-year backup battery is a huge plus, and the interconnect feature gives peace of mind since all the alarms go off together. The LED lights make it easy to tell whether it’s smoke or carbon monoxide. Setup was quick — just swapped the wiring harness and mounted it. A little bulkier than some models, but totally worth it for the reliability. I bought 4 of these and all of them are working as expected. ... show more
Reviewed in the United States on December 9, 2025 by Mehul A.
    • Straightforward Replacement, but Consider Using a Battery Type Instead.
Size: 1 Pack
Replaced our old garage alarm with this since the AC wiring was already there. You would think that an advantage to hardwire is that you don't have the damned thing screaming at you in the middle of the night to replace the battery, but this has a backup battery, so guess what? It's going to fail overnight! You might consider getting the Lithium battery type because the battery and sensor age out at about 10 years, so you might as well replace the whole thing, UNLESS you need to connect this to an alarm system. I tested ours with a candle wick because some smoke detectors, believe it or not, arrive incapable of detecting smoke. Go figure. ... show more
Reviewed in the United States on June 18, 2025 by Gray
    • Easy to install. Is a combo Smoke and CO2 detector.
Size: 1 Pack
Easy to install, though it was different from the one we were replacing. Came with something to leave over the detector if construction was still going on. In our case, we were replacing one that went through construction without protection from dust. Works with our other Kidde hardwired detectors. Love the 10-year battery, which may outlive us. There were cheaper ones, but my other ones were Kidde so I knew this one was compatible with them. It plugged right into connection plug, though as I stated above, we did have to change out the bracket even though the previous one was just 4 years old. I think our previous one was just Carbon Monoxide so having a dual detector was an improvement and am very happy with this product. This one looks smaller than our previous one, but is not. Might be a slicker look, more up to date. I would suggest this item to friends and family. ... show more
Reviewed in the United States on November 12, 2025 by Carol L.
    • Necessary for every home, and reliable!
Size: 1 Pack
Great product at great price! Re-detectored the whole house 4 months ago, haven’t had a single issue with any of the 6 I bought.
Reviewed in the United States on December 3, 2025 by Scott C Olson
    • Didn’t even last 9 months
Size: 1 Pack
The media could not be loaded. I purchased three Kidde hardwired Smoke/CO alarms with internal 10 year battery, on March 19, 2025 so that all units in my home would match. One of them has already become defective. For the last week, it has been giving 3 loud beeps every 2 minutes for hours at a time—even after resetting. It works for a day, then starts all over again. This has been happening at all hours, including 4 AM, and has been extremely disruptive for my family and pets. I’ve had to disconnect the faulty unit and place it in the garage because it would not stop beeping. When I go to order a replacement, I see that the model is no longer available and has already been replaced with a new version. Since I purchased a matching set of three, I need a solution that allows me to keep my alarms consistent. Please let me know the next steps for a warranty replacement or equivalent model. ... show more
Reviewed in the United States on December 6, 2025 by Ariel Moreno
    • Great detector but must replace the ceiling mounting plate
Size: 1 Pack
Great smoke & CO detector. Even though it is the hard-wired version, it is easy to insert the soldered leads into the plug of the old detectors so they don't have to be rewired. I found that I did have to use the ceiling hanger that came with the detector as the new detector could not be secured to the ceiling properly. That just meant that I needed to replace the ceiling mount plate at the same time as the detector before installing the new one. Otherwise, the installation was fairly simple and the detector seems to work as intended. ... show more
Reviewed in the United States on November 4, 2025 by Eric the Meticulus
    • Easy to Install
Size: 1 Pack
Review Image by Warren Ayen Warren Ayen
Super easy to install, with ample colored wires and a built-in battery that doesn’t need replacing. Just install and forget for the next decade!
Reviewed in the United States on December 13, 2025 by Warren Ayen Warren Ayen
    • Excellent Product
Size: 1 Pack
Excellent product, easy to install but get the adapter so you don't have to bother with wiring it in. No batteries needed, it has a built in battery that lasts for 10 years.
Reviewed in the United States on October 23, 2025 by Nick

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