Best Wifi Smoke Detector

First Alert Battery Operated Wireless Interconnect Smoke and Carbon Monoxide Alarm

Kidde Smoke Detector, Hardwired with Battery Backup & Interconnect, Battery Included

First Alert SC9120BA Hardwire Combination Carbon Monoxide and Smoke Alarm

First Alert PR700A Slim Series Battery Powered Photoelectric Smoke Alarm

First Alert 9120BA Hardwire Smoke Alarm w/ 9V Battery, Smoke Detector

Google Nest Protect - Wired

Kidde 21026515 120V Hardwired Smoke and Carbon Monoxide Detector Alarm Lithium Battery

FIRST ALERT Smoke and CO Alarm, SC7010BA, White

Kidde P3010CU Photoelectric Smoke & Carbon Monoxide Alarm with Voice Warning System

X-Sense 10 Year Battery (Not Hardwired) Smoke and Carbon Monoxide Detector with Display, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, SC01