CMD6-MBR-RCO Alarm Lithium-Metal Battery, 7-Year Life, Interconnect & Internal Relay, White The Fireboy-Xintex CMD6-MBR-R Carbon Monoxide (CO) Alarm provides advanced protection for boats and RVs. Featuring a state-of-the-art electrochemical sensor, it delivers immediate and stable CO detection, reducing false alarms even around common cleaning solvents. This sleek white alarm operates with a permanent lithium-metal battery, requiring no wiring for maintenance-free, reliable protection. Multiple CMD6 alarms can be interconnected to sound together, and an internal relay module is available for generator shutdown or external signaling. Key Features: Electrochemical sensor for fast, stable CO detection Long sensor life Approx. 7-year end-of-life (EOL) Compact white design blends with interior dcor Maintenance-free lithium-metal battery, requires no external power Internal relay module available for generator shutdown or external signal Interconnectable all connected CMD6-MxR alarms sound together Optional RCM5 relay control module compatibility Microprocessor controlled with conformal coated circuit board Time-weighted average CO measurement constantly monitors CO levels Highly resistant to most chemicals, solvents, and cleaners Specifications: Model Number: CMD6-MBR-R End-of-Life (EOL): Approx. 7 years Power Usage: None operates entirely on lithium-metal battery Alarm Point: 10% COHb Alarm Horn: 85 dBA Dimensions (L x W x H): 3.5 in x 3.5 in x 1.21 in (89 mm x 89 mm x 31 mm) Warranty: 1-year limited warranty (material & workmanship)