Notifier XPR-8, Eight Relay Control ModuleCondition:* New Surplus Stock, No OEM Packaging. As Pictured.Additional Notes:* Notifier XPR-8 Eight Relay Control Module controls up to eight SPDT Relays.* The XPR-8 can alternately employ up to four dual Form-C relays. * Each relay assumes a unique SLC address in the system and has a separate or dual green status LED at the bottom of the XPR-8 board.* For use with Notifier XP Series Transponders.Notifier XPR-8