First Alert Battery-operated Carbon Monoxide Detector with 10-Year Battery

The First Alert CO710 Carbon Monoxide Detector 1039752-CO710-6 provides up to 10 years of dependable protection with a built-in sealed lithium battery that requires no replacement. It features an advanced electrochemical sensor, loud 85-decibel alarm, backlit digital display showing room temperature and detected CO levels, peak-level memory, and an end-of-life warning. Its compact tabletop design requires no hardwiring or electrical outlet.