The RFID Fixed Reader 860-960MHz RS232 RS485 Long Range UHF RFID Reader is a type of RFID reader that operates in the ultra-high frequency (UHF) range of 860 to 960 MHz. It is designed to be fixed in a specific location, such as a warehouse or distribution center, and is capable of reading UHF RFID tags at long distances.The RS232 and RS485 refer to the communication interfaces supported by the reader. RS232 is a serial communication standard, while RS485 is a balanced differential interface commonly used in industrial applications. These interfaces allow the reader to connect to other devices, such as a computer or a control system.