Identium's Indiarfidstore ICL4P RFID PCB MODULE:Read distance up to 20 m, 4 Ports availableAutomatic scan - Com Port/NetworkRead distance up to 20 meters, read speed 700 times/sec.Linux OS carrying ARM9 CPU keeps 24hrs X 365days running.All Kinds of communication interfaces. WiFi, Bluetooth, 4G opti..