SPECIFICATIONS:Finger Print Digital Door Lock High technique Manage and open the lock only by identifying fingerprint .It is so accurate that it has only one in one million chance of opening up to the wrong fingerprint and it only rejects your print once in a thousand tries. No key, no card, relief from worries of losing keys. It can save more that 75 fingerprints, including one managing fingerprint . This product has more than 10 national monopolies. Install conveniently Every lock is controlled by a machine ,and has built-in power supply . there is no need to lay electric line and complex web. A person is able to fix the lock, especially for home and office. It can also be installed in security doors, wooden doors and so on. High Security Rotate freely the handle in lock mode, prevent the parts being destroyed and being drilled. The whole lock body is made of hardening steel templates . The built-in power supply can avoid system paralysis if there is power failure. The power consumption is extremely low and can support 10000 operations. Warning Alarm mode of low power During the time of using the lock, if orange light twinkles and hinting sound appears three times, it shows the lock is in the state of low power . but it can also support more than 100 operations. Inner and outer insurance Lock reversely when you come in or go out. Normal open state Normal open state can be set ,you needn抰 identify your fingerprint each time. Emergency approach In case of the accidental power cut , you can use mechanical key .