Feature:   1. Multiple Unlocking Methods: Lock cylinder supports fingerprint unlocking, password unlocking and mechanical key unlocking, supporting up to 100 fingerprints and 30 sets of passwords, safe and convenient.     2. Anti Peeping Password: Support virtual anti peeping password, enter a random password before and after the correct password, which makes your door very safe.     3. Key and Emergency Power Interface: A spare mechanical key and an external power interface are designed to prevent the battery from draining.     4. 360° Automatic Recognition: 360 degree automatic recognition, which can effectively identify the correctly registered fingerprints at any angle on the module.     5. High Quality: Supports 100,000 times press and is made of high quality zinc alloy materials, which is safe and environmentally friendly, ensuring high stability and safety quality.     6. Simple Operation: Low power design, energy saving and durable, strong anti interference ability, easy installation, provides all necessary accessories, convenient for your installation.             Specification:               Item Type: Smart Lock Cylinder  Material: Zinc Alloy  Security Level: Top  Adapt to Door Types: Security Doors, Doors, Wooden Doors, Glass Doors  Adapt to Door Thickness: Approx. 40mm-100mm/1.57-3.94in  Lock Cylinder Size: 70mm/2.76in (35mm/1.38in, 35mm) (That is the Lock Cylinder Hole is in the Middle Position)  Password Capacity: 30 Groups (The First Group is the Management Password)  Password Length: 6-12 Digits  Initial Password: 123456  Fingerprint Capacity: 100 Pieces  Electrostatic Protection: 15KV  Power Input: 3.6-5V  Current: Working Current <135mA, Standby Current <10uA  Working Temperature: -20℃-70℃  Compression Resistance: 100,000 Times  Battery Type: 3pcs AAA Batteries (not included)  Unlock Method: Fingerprint, Password, Key                       Package List:   1 x Smart Lock Cylinder     2 x Key       1 x Screwdriver       1 x Silicone Suction Cup       1 x Manual                  How to use:       User's Guide           1. About the password: There are 30 groups in total, the first group is the administrator password, the others are ordinary users, and the password length is 6‑12 digits.           2. About fingerprints: up to 100 sets of fingerprints, one management fingerprint can be set, the others are ordinary users, and there is no administrator authority.           3. About the administrator: In the initial state, press any key on the keyboard, it will be lit, and then enter the initial password 123456, and finally, press confirm and enter the administrator state, the password keyboard indicator light is off and the administrator password setting has been closure