DESC: The 5800CO is a 3V battery powered wireless carbon monoxide (CO) detector intended for use with Honeywell alarm systems that support 5800 Series wireless devices. It provides early warning when its electrochemical sensing technology measures carbon monoxide levels in the air. The detector consists of an electrochemical carbon monoxide sensor assembly coupled with a wireless transmitter. The transmitter can send alarm, trouble, end-of-life, tamper and low battery condition messages to the alarm panel.