First Alert 10-Year Battery Hardwired Ionization Sensor Smoke Detector Amazon “This First Alert hardwired smoke detector is equipped with an ionization sensor to reliably detect smoke from fast ...

First Alert’s new smoke alarms are designed to replace Google’s now-discontinued Nest Protect. ... ($74.97) are hardwired alarms with battery backup and will launch this April at The Home Depot.

The First Alert PRC710 alerts you to the presence of both smoke and carbon monoxide. Alex Rennie/Business Insider The First Alert PRC710's 1.38-inch height makes it the slimmest unit I tested.

Products include plug-in, battery, and hardwired units, as well as hardwired units with battery backup. First Alert also makes units that detect carbon monoxide and smoke, and dual-sensor units ...

The new First Alert Smart Smoke & CO Alarms will cost $129.99 and will be available in hardwired or battery-powered options later this year in the US and Canada.