D02 is a compact UHF desktop reader. Based on the design of high-performance ultra-high frequency chip, it fully supports electronic tags conforming to EPC Global C1 Gen2/ISO 18000-6C/6B protocol, and can support GB/T29768 and GJB7377.1 protocols at the same time. Combined with a proprietary efficient collision processing algorithm, it realizes fast reading and writing processing of electronic tags. HID USB interface without driver installation, easy to install and deploy. It can be widely used in various radio frequency identification systems such as personal identification, conference check-in system, access control system, anti-counterfeiting system and production process control.