Best Smart Smoke Alarm

First Alert Battery Operated Smoke and Carbon Monoxide Alarm, White, PRC700A-6

Kidde I12040CA 120V AC (Hardwired) Ionization Smoke Alarm with 9V Battery Backup and Hush Button, White

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

Airthings Wave Radon - Smart Radon Detector with Humidity & Temperature Sensor – Easy-to-Use – Accurate – No Lab Fees – Battery Operated - Free App

Kidde 900-0263CO-CA Plug-in Carbon Monoxide Alarm (KN-COB-DP2CA), White, 1 Units

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

DYWL SECURITY Carbon Monoxide Detectors Portable Carbon Monoxide Detector for Travel Carbon Monoxide Detector Plug in Wall with LED Digital Display Voice Light Plug and Play - 2Pack

Combination Smoke and Carbon Monoxide Detector Alarm, 2-Pack Beeps Warning Smoke and CO Alarms for Basements Travel Home Office House Bedroom Living Room Car, Battery Operated, Comply with UL 217/2034

FIRST ALERT Smoke and CO Alarm, SC7010BA, White

First Alert SC9120BA Hardwire Combination Carbon Monoxide and Smoke Alarm