First Alert

First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup - 3 Pack

First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon is a battery-powered carbon monoxide detector, essential when running any fuel-burning generator indoors is not an option. An easy, low-cost way to catch a generator placement mistake before it becomes dangerous.