The First Alert SC9120B Hardwired Combination Ionization Smoke and Carbon Monoxide Alarm with Battery Backup delivers both smoke and carbon monoxide detection in a single unit. This 120-volt AC smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast-flaming fires. It also features an advanced electrochemical sensor that detects carbon...


$314.26Amazon.com Price
(as of November 19, 2019 11:21 pm GMT+0000 - Details)