Catalog > Consumer Electronics > Security & Alarms > Alarms > Alert Systems GJD 4 ZONE EXPANSION GJD 4 ZONE EXPANSION FOR GJD DYGIZONE AND DETECTORS, CAN CONTROL 4 INDIVIDUAL LIGHTING CIRCUITS EACH WITH 1500W RESISTIVE LOAD . Call for Price Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE