... management 4.Special anti-collision algorithm RFID UHF handheld reader1.ALL IN ONE design. 2.RFID cards/tags,barcode scan, fingerprint ... ONE design Including 1D/2D barcode scanning, RFID cards/tags reading under UHF protocols,WiFi/GPRS/Bluetooth communication, GPS ... , asset tracking, library, transportation, manufacturing, etc.The UHF working frequency can be customized from 840MHz to 960 MHz ...