... It can be wired to respond to smoke alarms, CO alarms, Heat alarm or both Relay Module(wireless ... can be wired to respond to smoke alarms, CO alarms, Heat alarm or both.2. Enables AC ... in most junction boxes.5. Connects Firex smoke alarms with : Lights, Sirens, Exit signals, Exhaust ... CO, and CO alarm models: S598 series, H598 series, CPS598 series, C598 series. These are low-voltage interconnect alarms ...