Hammer Cps6004 4-Zone Electric Fence Energizer.

Technology: Features Smartlink technology for bridging high-voltage output and return wires to prevent tampering. Zones: Quad high-voltage zones that are hard-wired directly from the energizer. Power Output: 4 Joules of output energy per zone, totaling 15 Joules of stored energy. Backup: Includes a 7Ah battery backup providing up to 12 hours of operation. Control: Comes with a remote LCD keypad for full programmability.