Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered

Kidde 30CUDR combines smoke and carbon monoxide detection in a battery-powered alarm. Its two AA batteries and no-wiring setup suit locations where wiring is impractical, while its dual detection avoids needing separate smoke and CO alarms in the same spot.

At a glance

Detects both smoke and carbon monoxide with photoelectric and electrochemical sensors.
Runs on two AA batteries, included according to the listing, for no-wiring setup.
The listing claims an 85-decibel alarm, red LED alert, and sensing intended to reduce nuisance alarms from cooking or steam.
Manufacturer states the alarm is tested to UL 217 10th Edition, UL 2034 5th Edition, and FCC standards.

Price

$44.97Save 10%

Reference price: ~~$49.97~~

Price checked: Nov 12, 2026

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Often bought together

Kidde Compact Smoke Detector, AA Battery-Powered, 10SDR | 4-Inch Smoke Alarm with LED Status Lights, Loud 85 dB Alarm, Ideal for Homes and Small Spaces

$18.97

Pros and cons

Pros

Combines smoke and carbon monoxide detection in one unit.
Battery operation avoids a hardwired installation and supports operation during short power outages, according to the product information.
The listed sensor types cover smoke and carbon monoxide sensing in a single alarm.
A 10-year limited warranty is stated, beginning on the purchase date according to the listing.

Technical specifications

12 specifications

Identity
Brand	Kidde
Model	30CUDR
Alarm type	Smoke and Carbon Monoxide Detector
Style	10th Edition

Power and battery
Power configuration	Battery Powered

Sensors and operating limits
Sensor type	Photoelectric, Electrochemical
Operating humidity	10 to 95% relative humidity (RH), non-condensing
Upper temperature rating	100 °F

Dimensions and installation
Dimensions listed	1.88"D x 5"W x 5"H

Appearance and construction
Color	White
Enclosure material	Plastic

Warranty
Manufacturer warranty description	10-year Limited Warranty

What to know before buying

The manufacturer says to replace the alarm after 10 years or when end-of-life alerts begin. The 10-year warranty applies to the alarm, not battery performance. Clean at least annually with compressed air or a vacuum around openings and a dry cloth outside. Use HUSH only when there is no emergency. Customer feedback is mixed on reliability, battery life, noise, and compatibility, including reports of nighttime failures and lack of interconnection. The listed alarm is battery-powered and no interconnection capability is specified, so buyers needing linked alarms should confirm compatibility and requirements before purchase.

Who is it for?

A good fit for

Homes or apartments needing one battery-powered alarm to detect both smoke and carbon monoxide.
Installations where a no-wiring setup is preferred, subject to applicable placement and code requirements.

Less suited to

Buyers who require a hardwired or interconnected alarm unless they confirm this model meets those requirements.
Anyone seeking a guarantee of battery runtime, since no battery-life duration is stated.

Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 830 ratings

5 stars76%76%
4 stars12%12%
3 stars3%3%
2 stars2%2%
1 star7%7%

Customer feedback highlights appreciation for combining smoke and carbon monoxide detection and the reassurance buyers associate with that coverage. Reports are also mixed on reliability and quality, with some describing failures or faults. Opinions vary on value, battery life, noise, and compatibility, including reports that it does not interconnect with other systems. For buyers who need a basic standalone alarm, the battery-powered dual-sensor design fits that role, but mixed reliability feedback and unconfirmed interconnection make those needs important to assess.

Positive themes

Customers appreciate the combined smoke and carbon monoxide detection.
Some customers describe the alarm as reassuring.

Mixed feedback

Customers report mixed experiences with reliability and quality, including concerns about faults and nighttime failures.
Feedback is mixed on value, battery life, and noise level.
Some customers say it does not interconnect with other systems.

Frequently asked questions

What does the Kidde 30CUDR detect?

The listing describes a combined smoke and carbon monoxide alarm with photoelectric and electrochemical sensors.

What powers this alarm?

It is battery powered and the product information specifies two AA batteries. Batteries are described as included, but battery runtime is not specified.

Can it interconnect with other alarms?

The supplied product details do not confirm interconnection. Customer feedback includes concerns about compatibility, so confirm this requirement before buying.

How should the alarm be cleaned and when should it be replaced?

The manufacturer recommends cleaning at least once a year with compressed air or a vacuum hose around openings and a dry cloth outside. Replace it after 10 years or when end-of-life alerts begin.