Frequency:100-150KHz Work mode: R/W Memory: 330bits, 10 partitions, 8bit passwords Reading distance: 3-10cm Endurance: >100,000 times Data retention: 10 years Working temperature: -20℃~+55℃ Dimensions: 85.6×54×0.86mm Packaging materials: PVC/ABS/PET/PETG/Paper,etc.

Size: 2.5×2.5cm Power supply: 2.7~5V@30mA Work frequency: 125KHz Support chip: ATA5557, T5567, T5577 or compatible chip (default format Manchester code RF/32) Interface: serial port (TTL-232 format) Read distance: <7cm, write distance: <6cm (T5557, T5567, T5577 Chip R/W Module has read-only and read-write two models, according to the project needs to choose the right module.)