... or DC powered security devices to interact with AC powered smoke alarms3. Turns lights and other devices ON or OFF when ... when adactivated.4. Fits in most junction boxes.5. Connects Firex smoke alarms with : Lights, Sirens, Exit signals, Exhaust fans, Other auxiliary ... %~90%Interconnect Models: This module ca be with the following smoke, heat, smoke/CO, and CO alarm models: S598 series, H598 series ...