タイトルまたは説明

1. The encrypted QR code is used to open a door, the application scope and function can be far more extended.
2. The QR code card can be personalized, use only once, which is safe and environment-friendly.
3. The QR code can be generated by mobile software, and can be used to open the door directly without any paper and actual card.
4. It is the first design in the world, and has obtained several domestic and international utility model patents and invention patents.
5. It is made of unique acrylic and has built-in flame retardant light reflection cup with high light condensation and transmittance.
6. Adopt imported chips, SMT technology, the performance are stable and reliable.
7. Use imported HD CMOS camera, with strong anti-interference ability and highly integrated capability.
8. It has the function of time synchronization and opening records.