Description

QR code lock
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 healthy and environment-friendly.
3.The QR code can be generated by mobile phone software and can be 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.
5.adopt imported chips, SMT technology; The performance is stable and reliable.
6.It has the function of time synchronization and opening records.