![USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels - Walmart.com USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels - Walmart.com](https://i5.walmartimages.com/asr/372fdb8a-ba19-4ffa-a35d-5074f1b498ac.40fe5cb0610203202e57040d07ebe0a4.jpeg)
USI 3-in-1 Smoke, Photoelectric and Ionization Fire and Carbon Monoxide Smart Alarm with 10 Year Sealed Battery, 85 Decibels - Walmart.com
![Kidde Fire Safety on Twitter: "🔔 4 Short Beeps: Urgent – CO has been detected! Immediately leave your home and call 911." / Twitter Kidde Fire Safety on Twitter: "🔔 4 Short Beeps: Urgent – CO has been detected! Immediately leave your home and call 911." / Twitter](https://pbs.twimg.com/media/EWtraZfWsAAxGOX.png)
Kidde Fire Safety on Twitter: "🔔 4 Short Beeps: Urgent – CO has been detected! Immediately leave your home and call 911." / Twitter
![Need help with this carbon monoxide detector as getting problems and its chirping/ showing yellow light. Detector model is a BRK CO850MBXi. Full description of problem in comments. Any help would be Need help with this carbon monoxide detector as getting problems and its chirping/ showing yellow light. Detector model is a BRK CO850MBXi. Full description of problem in comments. Any help would be](https://i.redd.it/h6sbmfw4p1m71.jpg)