... 20m 4.RS232, RS485, Wiegand ,RJ45 passive UHF RFID Reader passive UHF RFID Reader Character1.Passive RFID UHF Reader 2.UHF Reader with built- ... club ,library,Time attendance,Dinner management,Pool managementpassive UHF RFID Reader Specification Working frequencyISM 902MHz ~ 928MHz, (customized as ... *450mm*65mmWeight5.0KgWorking temperature-30c~+70cpassive UHF RFID Reader pictures passive RFID Reader