Introducing the System Sensor RRS-MOD Reversing Relay and Synchronization Module, designed specifically for 4-Wire i3 Series Fire Detectors. This innovative module is compatible with both 2- and 4-wire i3 detectors featuring a sounder, ensuring seamless integration into your fire safety system. When one detector alarms, it activates all sounders on the loop, providing a synchronized and clear alarm signal. The RRS-MOD is versatile, supporting bell/alarm, alarm relay, or NAC outputs, and features a selectable switch for coded or continuous alarm signals. With the ability to silence detectors from the panel or keypad, and easy connections via a quick-connect harness, this module operates efficiently on both 12 and 24 volt systems. Enhance your fire safety setup today with the RRS-MOD!