User Manuals, Instructions and Guides for Shenzhen Zaifengda Technology products.
Shenzhen Zaifengda Technology HMI-2005 Digital Smart Door Lock Instruction Manual
This instruction manual is for the HMI-2005 Digital Smart Door Lock by Shenzhen Zaifengda Technology. It includes safety features, access modes, installation instructions, and how to use the TTLOCK App for access records and Bluetooth user registration. The lock supports up to 100 password and 150 card users, and has a low battery alarm with 4 AA batteries.