Features .Deter thieves .Provide a feeling of security for your customers .Protect your inventory .Offer completely safe protection for products and people .An optional crash kit to safeguard pedestals from shopping cart collisions .(aluminum alloy design),simplistic, light weight and inexpensive. Electronic Technology MCU processing technology Power supply BH9106 Detection Range /Aisle Width Label:110cm(normal)130cm(largest) Small square hard tag:140cm(normal)160cm(largest) Big square hard tag:18cm-200cm(normal)220cm(largest) Frequency 8.2MHZ Antenna Dimensions Height: 156cm Width: 38cm On Demand