Ajax security system is path breaking and incorporates next-generation technology. The StarterKit includes the essential equipment for break-in detection: the opening detector, the motion detector, the key fob with a panic button, and the central hub to control this system. The Ajax Central Station hub manages all of the devices within the system to notify you and your security company in case of a threat. ReX radio signal range extender expands the boundaries of the protected area. It allows for the Ajax system integration on the large production plants, multi-story offices, and estates.