BRK SMOKE ALARM 120V for battery *Adapter plug fits Kidde, Fireex units *No rewiring necessary *Single test/silence button *Intelligent sensor reduces nuisance alarms *Ionization smoke sensor *Automatically performs internal test *Interconnect up to 18 units *Quick connect plug with 8" pig tails *Universal mounting bracket with screw slots *Boxed *Discovery CON, NBR, SUP connect plug with 8" pig tails *Universal mounting bracket with screw slots *Boxed *Discovery CON, NBR, SUP