Kidde
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Smart Smoke and Carbon Monoxide Detector, Ring App Enabled for Real-Time Notifications, Hardwired Alarm, AA Backup Battery Smoke & Carbon Monoxide Detector

Put next level smoke and CO detection in the palm of your hand with the Kidde Smart Smoke and Carbon Monoxide Detector, Ring App Enabled for Real-Time Notifications, Hardwired Alarm, AA Backup Battery. Help protect what matters most with cutting-edge sensing technology and seamless Ring App integration.

Today’s fires burn faster and hotter than ever before, that's why Kidde has partnered with Ring to create smart smoke and CO alarms. This Ring App enabled smoke and CO alarm features enhanced sensing technology to reduce nuisance alarms often caused by cooking and sends fast alerts when smoke or CO is detected. Crystal-clear voice alerts on the alarm announce “Warning, Carbon Monoxide” or “Fire!” to help identify which hazard is detected in your home.

  • Optional Ring subscription with 24/7 smoke and CO monitoring for $5/month allows trained agents to request emergency help in case of alarm.*
  • Powered by 120V AC wiring with two AA backup batteries (included) to help ensure you’re protected during outages.
  • Experience whole home smart connectivity by adding one smart detector to your existing Kidde hardwired alarms and get real-time notifications on the Ring App home or away, including smoke, CO and low battery warnings.

*A compatible Ring subscription is required for 24/7 Smoke Monitoring. Service available within the U.S. (all 50 states, but not U.S. territories). Ring does not own its monitoring center. Smoke monitoring is not available for business or commercially zoned addresses. Additional fees may be required for permits, false alarms, or Alarm Verified Guard Response, depending on your local jurisdiction. **When compared to prior Kidde generations of smoke alarms. ***Different models offer different interconnection options and requirements. Check the User Guide for more info. ****29% faster average smoke detection based on internal testing of smoldering wood fires for Kidde 9th Edition vs. leading competitor 8th Edition products.

  • Double the Detection: Alerts you to both smoke and carbon monoxide (CO)
  • Real-Time Ring App Notifications: Home or away, get smoke, CO or low battery warnings (no subscription required)
  • Over 25% faster smoke detection (based on internal testing vs a leading competitor)
  • Optional Ring subscription (sold separately) with 24/7 smoke and CO monitoring for $5/month
  • Whole Home Smart Connectivity: Get mobile alerts for every hardwired alarm in your home by adding just one Kidde smart detector; check the user guide for more information
  • Reduced Nuisance Alarms: Enhanced sensing technology reduces false alarms often caused by cooking when compared to prior Kidde generations of smoke alarms
  • Connect with Alexa: Get notifications from Alexa-enabled devices
  • Comprehensively tested & certified to meet requirements of UL 217 and FCC standards
Brand ‎Kidde
Style ‎Smoke & Carbon Monoxide Detector
Power Source ‎Hardwired
Color ‎White
Product Dimensions ‎2"D x 5"W x 5"H
Item Weight ‎1.2 Pounds
Alarm ‎Audible
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 ‎047871332755
Part Number ‎21033741
Item Weight ‎1.2 pounds
Item model number ‎RGCUAR-RW
Size ‎5 Inches
Item Package Quantity ‎1
Included Components ‎2x AA Batteries, Mounting Bracket, Smoke & Carbon Monoxide Alarm, User Guide, Wiring Harness
Batteries Required? ‎No
ASIN B0F7N7WGWY
Customer Reviews 4.0 4.0 out of 5 stars 13 ratings 4.0 out of 5 stars
Best Sellers Rank #3,701 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #25 in Smoke & Carbon Monoxide Alarms
Date First Available October 28, 2025
Brand Kidde
Style Smoke & Carbon Monoxide Detector
Power Source Hardwired
Color White
Product Dimensions 2"D x 5"W x 5"H
Item Weight 1.2 Pounds
Alarm Audible
Operating Humidity 10 to 95% relative humidity (RH), non-condensing
Upper Temperature Rating 100 Degrees Fahrenheit
Sensor Type Photoelectric, Electrochemical