# 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.

- [Original product page](https://best-deals.pro/product/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [View offer](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Kidde
- Model: 30CUDR
- Category: Electronics > Smart Home & Security > Alarms & Sensors
- Price: 44.97 USD
- Previous price: 49.97 USD
- Discount: 10%
- Price checked: 2026-11-12T11:51:59.660Z
- Rating: 4.4 / 5
- Reviews: 830

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## 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

## Before you buy

- 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.

## 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.

## Customer feedback

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.
- Positive themes: Some customers describe the alarm as reassuring.
- Mixed feedback: Customers report mixed experiences with reliability and quality, including concerns about faults and nighttime failures.
- Mixed feedback: Feedback is mixed on value, battery life, and noise level.
- Mixed feedback: 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.

## Alternative options

- [Kidde CodeOne Smoke Detector, Hardwired with 9V Battery Backup, 20SAR9V \| Wired Interconnect Capability, LED Status Lights and Loud 85 Db Alarm, Ideal for Homes and Apartments](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [Heiman Smoke Detector, Wireless Interconnected Smoke Alarm for Home, 3 Pack \| Photoelectric 10 Year Product Life, Battery Operated Tiny Fire Alarm for Indoor Apartments Rental, UL 217, S1-R](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [X-Sense Smoke Detector Carbon Monoxide Detector Combo, SC07, 1-Pack \| 10-Year Sealed Battery \(Not Hardwired\), 2-in-1 Smoke & CO Detection, LCD Display, UL 217 & UL 2034 Certified](https://best-deals.pro/visit/x-sense-sc07-smoke-carbon-monoxide-alarm)
- [X-Sense Smoke & Carbon Monoxide Alarm, SC06, 1-Pack \| 10-Year Sealed Battery \(Not Hardwired\), 2-in-1 smoke & CO detection, Easy Installation, UL 217 & UL 2034 Certified](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [X-Sense Smoke Detector, 10-Year Battery, UL 217 Certified, SD2L0AX, 3-Pack \| Fewer Cooking Nuisance Alarms, Photoelectric Sensing, One-Button Hush & Self-Test, Easy No-Wire Installation](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [SITERWELL Smoke Detector Photoelectric Smoke Alarm 9V Battery \| Hardwired Smoke Detectors Interconnected, Fire Alarms with Test/Silence Button, UL217 Listed Fire Detector,GS562A, 2 Packs](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [SITERWELL Smoke Detector, Photoelectric Fire Alarm with 9V Backup Battery, Hardwired Smoke Alarm Interconnected, Fire Detectors with Test/Silence Button for Home Safety, 10 Packs](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [SITERLINK Hardwired Smoke and Carbon Monoxide Detector with Battery \| Meet UL217 Wired Interconnected Smoke Alarm and Carbon Monoxide Detector with Voice Alert 1-Pack](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [SITERLINK Smoke Detectors with 9V Replaceable Battery UL217 GS509A 4 Pack \| Photoelectric Sensor Smoke Alarms with Test-Silence Button,Fire Detectors for Home,House](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [SITERWELL Smoke Detector Photoelectric Smoke Alarm 9V Battery Backup \| Hardwired Smoke Detectors Interconnected, Wired Fire Alarms with Test/Silence Button, UL217 Listed, GS562A, 1 Pack](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [SITERLINK Smoke Detectors 10 Year Battery Backup UL217 ,GS525A 1 Pack \| Smoke Alarm with Test-Silence Button,Photoelectric Sensor Fire Alarms Smoke Detectors with LED Lights for Home](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)
- [SITERWELL Smoke Detector 10 Year Battery Smoke Alarm Fire Detectors \| Photoelectric Fire Alarms with Low Battery & Fault Warning for House Bedroom, UL217 Listed, GS525A, 1 Pack](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)

## Add-ons

- [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](https://best-deals.pro/visit/kidde-30cudr-smoke-carbon-monoxide-alarm)

## Images

![Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered — 1](https://best-deals.pro/i/jrdZLp6S37O2jhqGcQo7IPlwK_R4c13JBTMRX_P_GK7fXcDrzg4mroz9oF8CTzLZGMUKkQlzc8l-ZM8oceWCvGMWFcGaZufJW-g8cW7aeMqIgYpj1nvwuw75.jpg)

![Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered — 2](https://best-deals.pro/i/NUra9h2meQOyIfJ_yK0B4Mbhg1kTP5MGGCX5dpy1eNX993LescGcv3iStUajikNOomkCXHCgvuLzWbvvOgDGF8zpT1Yf0LoSxVtmGeDzOAD_QEQg0jrpo5oO.jpg)

![Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered — 3](https://best-deals.pro/i/cfeTYN8q4zYFXLLyE874tioLOCkcpRdHOAmVemutStBTNDkxah56o9nsLUt5d1g1UZJ8Dzw0-SJ4w9ZlaEslRA5k1yf6HC3fEOIVi_3KnC3ouyoghjKzzEGc.jpg)

![Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered — 4](https://best-deals.pro/i/qHQoRbtrGxR1Gv5NYDlLqRj3bZDxOcsdYAk9HKQcYx2PHPTL5t9fJ028J9SaEifFi3dsPJE4TuZoZH8ZyrR9ZrIsLs7juDqTlLp1_XiuKcFda1V2yGYzA0OP.jpg)

![Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered — 5](https://best-deals.pro/i/hI3eRdc85TCQV7zCUCpR2HU-dk5niwrJskcqnKxflggkrEMy1R4XHdV3DLZCRrd-MRA0cQky887-_tv5LKm4gzVm1I5rwD8B-vrt6SYbUguddXk7e78Y67cU.jpg)

![Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered — 6](https://best-deals.pro/i/GRK2myNjnMq_kOkuEUits93IkGvzCTTZukXIyo8gj70_xgQcUBNbKUBJUqm5Bb-yN_KxL7vNSdG5kNzBarNDf-TmNfwePSwc1T7Twvg-_FbBHKg8z6isRWTi.jpg)

![Kidde 30CUDR Smoke and Carbon Monoxide Alarm, AA Battery-Powered — 7](https://best-deals.pro/i/53OwMl-xT-0qv4UctNaH-89rRhjdhi1MsMrZs_SSEJIbccQCU84EZgZ9iZPg2rUGn3LOMycFILDwN5HX_eOHpSNehev6iSq_z54ger4FzHmBBC3-XFrnEBB9.jpg)