Garrett PD 6500i and Multi-Zone Walk-Through Relay ModuleGarrett PD 6500i and Multi Zone Walk Through Relay Module This Garrett Relay Module is designed for use with Garrett PD 6500i or Multi Zone walk through metal detectors. It provides an isolated relay contact to control lights, doors, and equipment. Internal dip switches offer the following four operating modes: Activate on alarm Activate on passage of each patron Activate on alarm, release on non alarm Activate on non alarm for 5 seconds The Garrett