Set a variety of unlocking methods. Single-open fingerprint lock can only be unlocked by fingerprint identification or password input, and double-open fingerprint lock can be set with multiple unlocking methods, such as fingerprint, password and key. , which can meet the unlocking conditions in more different situations. Fingerprint lock is a kind of intelligent lock with human fingerprint as the identification carrier and means. It is the perfect crystallization of computer information technology, electronic technology, mechanical technology and modern hardware technology, and consists of electronic identification and control and mechanical linkage system.