• Compatible with 2- and 4-wire i3 detectors equipped with a sounder
• Activates all i3 sounders on a loop when one alarms
• Synchronizes all i3 sounders on the loop
• Can be used with bell/alarm, alarm relay, or NAC outputs
• Includes a field-selectable switch to accommodate both coded and continuous alarm signals
• Allows i3 detector silencing from the panel or keypad