ac hardwired operated carbon monoxide alarm with digital display kn-cop-ic compass

this alarm interconnects with up to 24 devices including smoke alarms, co alarms and heat alarms on one wiring network. the digital display feature allows constant monitoring of carbon monoxide levels and updates every 15 seconds to let you know if levels change. sealed cover reduces nuisance alarms. sealed to protect sensor from contaminants prior to installation. this system enables the unit to alarm in a carbon monoxide pattern and sound a different pattern when interconnected to a smoke alarm that is in alarm mode..syi