... wired to respond to smoke alarms, CO alarms, Heat alarm or both Relay Module(wireless module, alarm relay module)1. It can be ... wired to respond to smoke alarms, CO alarms, Heat alarm or both.2. Enables AC or DC powered security ... : This module ca be with the following smoke, heat, smoke/CO, and CO alarm models: S598 series, H598 series, CPS598 series, C598 series ...