The SenTech Defender 8.2 / 9.5 MHz RF EAS System package is designed for easy Plug-n-Play installation. It includes both the transmitter and receiver pedestals, a non-slip aluminum mounting plate, power supply for 120 VAC operation and all necessary hardware for assembly. Assembles in minutes following easy step by step instructions. System package includes the following items: 1) STC625 Receiver Pedestal 1) STC626 Transmitter Pedestal 1) STC8200-P Power Supply 120V /18 VAC 1) STC700 Universal 3’ X 16” wide Base plate 1) System Manual & User guide