CMD6-MDR-R 12/24v DC Carbon Monoxide Detector - 7 year life, Lithium-metal B/U Battery, Interconnect & Internal Relay - WhiteThe Fireboy-Xintex CMD6-MDR-BR Carbon Monoxide (CO) Alarm delivers advanced marine and RV safety with dual power operation. Equipped with a state-of-the-art electrochemical sensor, it provides immediate and stable CO detection, reducing false alarms even in the presence of common cleaning solvents.This black alarm is powered by 12/24V DC with a permanent lithium-metal backup battery, ensuring continuous protection even if external power is lost. Multiple CMD6 alarms can be interconnected to sound together, and an internal relay module can trigger generator shutdown or an external signal for enhanced safety.Key Features: Electrochemical sensor for fast, stable CO detection; Ultra-low current draw 4 mA at 12V DC; Long sensor life Approx. 7-year end-of-life (EOL); Compact black design blends with interior dA cor; Dual power operation: 12/24V DC with permanent lithium-metal backup battery; 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-MDR-BR; End-of-Life (EOL): Approx. 7 years; Power Usage @ 12V DC: 4 mA; 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);