brk co910b carbon monoxide alarm 10yr sealed battery powered electromechanical

10-Year sealed battery operated lithium power tamperproof carbon monoxide alarm. Features: » 10-Year Lithium Power - 10 years of continuous protection. No battery change required.» Tamperproof Sealed Alarm - Powercell cannot be removed.» Electrochemical CO Sensor - Most accurate technology available for detecting carbon monoxide as compared to other sensing technologies.» Silence feature» Tamper resistant mounting bracket - Locks alarm to mounting bracket. Perfect for apartment and dormitory applications» 10-Year Limited Warranty Specs: » Sensor: Electrochemical» Warranty Claim: 10-Year» Package Type: Box» Color: white» Battery backup: N/A