... with high performance main/auxiliary gate antenna, 3 line infrared motion detection sensor which can detect the direction for the tag ... Current160 (mA)AlarmLight and buzzerDirection JudgmentBuilt-in 3 line infrared motion detection sensorExtend FunctionNXP tag/label EAS function, Support plug-in ... , etc. UHF Gate Reader Built-in 3 Line Infrared Motion Detection Sensor Direction Judgment RRU-CH-AD