Specifications: 1> Input voltage: DC 5V. 2> Working current: 50mA. Working frequency 3>. : 134.2 KHz. 4> Suitable type: ISO 11784/85 or compatible card. 5>.Format: FDX-B. 6> Reading distance: Operating temperature range: -20 C. ~ 85? Humidity range 8>. Working: 0% -95% RH. 9> Size: 26 x 26 x 11 mm. Antenna size 10>. : 74 x 54 x 1.5 mm. Features: Receiver data: 03 84 12 DB FA E7 D5. Country ID: 03 84. National ID: 12 DB FA E7 D5. Protocol series: AA 0F 08 00 03 84 12 DB FA E7 D5 81 BB Start code: AA Fixed code: 0F 08 00. Point data: 03 84 12 DB FA E7 D5. Control code: B1. End code: BB Control code calculation: 0F (XOR) 08 (XOR) 00 (XOR) 03 (XOR) 84 (XOR) 12 (XOR) DB (XOR) FA (XOR) E7 (XOR) D5 = 81. Pin definition: 1.GND 2.VDC. 3. NC: no function, no use. 4. TXD: data sending 5. NC: no function, no use. 6. NC: no function, no use. 7.L1: connection to the antenna. 8.L2: connection to the antenna. Package contents: 1 x 134.2 KHz RFID wireless module. 1 x aerial. Please note: 1. Please allow for a 1-2 cm error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated in the same way, the colour of the item shown in the photos may be slightly different from the actual item. Please take the real one as standard. The read frequency of the card reader module is 134.2KHZ (error 1KHZ) Module operating voltage: 5V, current less than 50mA The card reader module reads a label in accordance with ISO 11784/85 FDX-B format or its compatible RFID card. Card reading distance: the ear mark is 6 cm, the foot ring, etc. 4 cm The card reading module is a TTL level serial port output, which can be directly connected to the serial port of the target microcontroller. The baud rate is 9600. The read frequency of the card reader module is 134.2KHZ (error 1KHZ) Module operating voltage: 5V, current less than 50mA The card reader module reads a label in accordance with ISO 11784/85 FDX-B format or its compatible RFID card. Card reading distance: the ear mark is 6 cm, the foot ring, etc. 4 cm The card reading module is a TTL level serial port output, which can be directly connected to the serial port of the target microcontroller. The baud rate is 9600.