1,RFID Attendance management system 2,Waterproof &Durable 3,USB Communication ... quality!HUA-101 Super durable rfid guard tour management system1,Completely water-proof and shock-resist, ... can be buried under wall,unmodifiable and unique ID number.Frequency125KHZDimensionoptionalEvent Wallet The patrolman can record different ... issue, Inventory, Asset tracking etc... RFID Attendance management system