1.RF EAS alarm system SCC3833 2.4X4 soft label: 1.5m Hard tag: 2.0m (mini 1.6m, ... midi 1.8m, large 2.0m) 3.Elegant looking RF EAS alarm ... processor with unique algorithm of noise analysis and tag signal recognition(Our own intellectual property), ensures ... Large square tag: 200cm Scan rate158Hz, 168Hz, 178Hz, or 188Hz (optional)Alarm volume90db, 60db, 100db optional RF EAS alarm ...