LCD Screen Biometric Recognition Products Face Recognition Door Lock IR Sensor

Smart door lock with Face recognition Fingerpfrint Palm vein Password and Key,IR sensor Lithium battery Smart Door Lock Mix08-3S This smart door lock is a specially for residential building, Villa, Country house,banks or some places that need high security and convenience. It can be installed at most entrance doors without changing the lock body itself. With Lithium battery at the back.It can be used about 6 months every charge.And when the battery is low,it will alert