Standalone Store Entrance Security System - Dual Antenna - RF Frequency

This model is the STANDALONE function:  NO cable between the 2 Towers Each tower is independently powered so there are NO WIRES IN BETWEEN the towers. This RF EAS system - which comes with 2 antennas - can protect entrances up to 6 feet wide. !!!  THIS IS OUR MOST POPULAR SYSTEM !!!  Feature: Hot seller with Competitive price Dimensions: 65 x 13  x 3.5 inches Detecting distance: ~6 ft total (4.5 ft in between, .75 ft on the outside of each) Frequency: 8.2MHz±0.5MHz 1 Set antenna ONLY 2 Power Boxes for Standalone