... AC or DC powered security devices to interact with AC powered smoke alarms3. Turns lights and other devices ON or OFF when ... . Fits in most junction boxes.5. Connects Firex smoke alarms with : Lights, Sirens, Exit signals, Exhaust fans, Other auxiliary devices Specifications: ... DCAmbient Humidity: 10%~90%Interconnect Models: This module ca be with the following smoke, heat, smoke/CO, and CO alarm ...