BRK Smoke/Carbon Monoxide Combo Alarm, 120 Volt AC/DC, SC9120B
BRK SC9120B Hardwired Smoke/Carbon Monoxide Alarm Combination w/ 9V battery Back Up , Ionization/Electrochemical, Silence , Latching120V AC/DC Smoke/CO Combo Alarm Hardwired ionization/CO combination alarm meets new construction requirements.