Kidde

Kidde Smoke Carbon Monoxide Detector 10-Year Battery Powered LED Warning Light Indicators 30CUD10

463+ bought in the past month

$52.99$62.67

About this item

  • 2-IN-1 DETECTION: Alerts you to both smoke and carbon monoxide (CO) using a single detector.
  • NEVER-CHANGE 10-YEAR BATTERY: No low battery chirps or battery changes for 10 years and saves up to 40 Dollar over the life of the detector. (10-yr limited warranty on alarm, not a battery performance claim.)
  • 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.
  • 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 and a loud 85-decibel alarm will sound.
$52.99
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Product details

BrandKidde
Style9th Edition
Power SourceBattery Powered
ColorWhite
Product Dimensions1.88"D x 5"W x 5"H
Item Weight10.43 ounces
AlarmSmoke and Carbon Monoxide Detector
Operating Humidity10 to 95% relative humidity (RH), non-condensing
Upper Temperature Rating100 Degrees Fahrenheit
Sensor TypePhotoelectric, Electrochemical

Technical specifications

brandKidde
style9th Edition
power_sourceBattery Powered
colorWhite
product_dimensions1.88"D x 5"W x 5"H
item_weight10.4 ounces
alarmSmoke and Carbon Monoxide Detector
operating_humidity10 to 95% relative humidity (RH), non-condensing
upper_temperature_rating100 Degrees Fahrenheit
sensor_typePhotoelectric, Electrochemical
global_trade_identification_number00047871328383
materialPlastic
number_of_items1
manufacturerKidde
upc047871328383
part_number21032838
item_model_number30CUD10
batteries1 Lithium Ion batteries required. (included)
size1 Pack
pattern30CUD10
shapeCircular
item_package_quantity1
included_componentsAlarm, Mounting Hardware, User Guide
batteries_includedYes
batteries_requiredYes
battery_cell_typeLithium Ion
best_sellers_rank#514 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Smoke & Carbon Monoxide Alarms
date_first_availableApril 29, 2024

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Customer reviews

4.34,070 ratings

Customers say

Customers find the smoke and carbon monoxide detector to be well-engineered and easy to install, providing reliable protection and peace of mind for 10 years.

★★★★★

Way too many false alarms!

Stacey M Eskin LansmanDecember 3, 2025

Most of them are now in the garbage. All have had false alarms over the last two years and usually in the middle of the night. Sometimes they won’t go off, which leads me to stomping on it as seen in the pic. Sometimes you can get the back label off to undo the battery, but not at 3:30am. Very disappointed, thought kidde was the top brand. Read more

Review image 1
★★★★★

Good deal product and easy installation

Ala K.November 22, 2025

Easy installation, we tested the product and it seemed to work well. The price was excellent, it was a better deal than purchasing it at the store. It only took a minute to put up. I love the fact that the battery does not have to be replaced and hopefully will last 10 years as promised. Read more

★★★★★

Easy and good replacement

RodrigoJanuary 6, 2026

Our old alarms came to end of the useful cycles with the ever joyous trill beeping and had to get some new ones. These were a pleasant surprise in that 1) they didn't need to be hard wired, 2) they snapped right in, and 3) they stopped the incessant beeping of the failed old ones. Not a complaint to be had. Read more

★★★★☆

Good quality smoke and CO2 detector but I wish they would standardize brackets

Neil & NicoleMarch 19, 2025

The time finally came. Our smoke and carbon monoxide detector (also a Kidde brand) from 2010 finally died and we needed a replacement and the unholy chirp constantly reminded us. After reading various reviews from various online sources, we settled on this newer Kidde smoke and carbon monoxide detector with a sealed 10 year battery. The detector itself was easy enough to install with the included bracket but my biggest gripe is that there is no bracket standard, not just between brands but within the same brand. So to install the new bracket I had to pluck the old wall anchors out and drill new holes for new anchors because the hole pattern was different. Very frustrating because a standard set of hole patterns would allow you to utilize the old anchor points, saving time. I'm too lazy to fill and repaint all the holes so the detector is covering up decades of various bracket holes. Positives + Sealed unit with 10 year life so no battery replacements + Easy enough to install + Easy to test and see function by color coded LEDs + Detects both smoke and carbon monoxide Negatives - No bracket standard hole pattern means having to drill new holes and possibly remove old anchors Read more

Review image 1
★★★★★

reputable detector

vampkelJanuary 12, 2026

i've only just received the item so i don't know how well it works, but it is highly rated and looks easy to install. Read more

★☆☆☆☆

Repeated Fault Errors

TonyaJanuary 13, 2026

Bought a 2-pack and within a couple of months, one of the alarms started giving a "Fault" error in the middle of the night. Tried to reset it multiple times and blow it with compressed air, but ended up disabling it (since customer support was out for the night). Called customer support the next day and they sent out a new one. Got a new one. Same thing - started giving a "Fault" error in the middle of the night about a month later. Since customer service was not an option in the middle of the night, husband and I tried several online suggestions and ended up having to disable it. Customer support the next day gave attitude and said they would send out another but that they wouldn't send me a third replacement if I disabled it again. I told them they wouldn't have to worry because if it happened again, I wouldn't want another one since it doesn't seem like a trustworthy fire alarm if it kept giving "Fault" errors. Needless to say, that one lasted about 8 or 9 months more and now the second alarm that had had no issues has done the same thing. Not sure why, but our house does not seem conducive to this alarm. Read more

★★★★★

Great product

H PappasDecember 29, 2025

Great alarm and not having to change the batteries every month or two is amazing. Great buy to keep you and your family safe. Read more

★★★★★

What's to not like

R. AshbyNovember 9, 2025

I've had this very model detector in my house for 12 years and it finally gave out so I feel like 12 years is a pretty good lifespan so I just bought another one! Read more

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