 
       
        
       Carbon Monoxide (CO) Alarm - AC/DC
  
  
    Carbon Monoxide (CO) Alarm - AC/DC
  
        This single or multi-station CO alarm installs in minutes! It has the same contractor- preferred design as our popular Model 4120B smoke alarm, and can be interconnected with up to 11 additional smoke or CO alarms. A hardwired carbon monoxide alarm that meets building codes where AC/DC carbon monoxide alarms are required. The CO5120BN features a permanently installed sensor. Meets UL2034.