1. Interface: TTL level RS232 format
2. Purpose: experiment
3. Card reading distance: below 5CM
4. Application: smart home
5. Weight: about 10g
6. Coil inductance: 47~68uH
7. Frequency: 125KHz
8. Working voltage: DC 5V
9. Working current: less than 50 mA
10. Working temperature: -10 to 70 degrees Celsius
11. Storage temperature: -20 to 80 degrees Celsius
12. Coil size: 46x32x3mm
13. Module size: 38.5x19x9mm
