1.RF Retail Secuirty Antenna, Rf Antenna, Supermarket Alarm System 2.Frequency: 8.2MHz 3.1600 x 480 x 200 ... mm Retail Secuirty Antenna /Rf Antenna/ Supermarket Alarm SystemFrequency:8.2MHZDimension:1600 x 480 x 200mm Detection Range ... Detail:1pcs/cartonG.W:9KG*2(With Digital Signal Processing, can identify effective signal) Retail Security Antenna (RF) /Rf Antenna / Supermarket Alarm System