Lockset with handles

Start by identifying where the lock will be used (high-traffic commercial door vs private interior door) and the preferred access method (keyed, keypad, biometric, or smart). In this range you’ll find keyed options (for simple locking), keypad-pushbutton variants, and biometric possibilities that use fingerprint sensors, plus privacy locks for interior doors and smart-lock styles that work with mobile apps. Matching the lock style to door material and usage helps ensure smooth operation and reliable security over time.

The most complex attribute is the access-control configuration because it combines multiple authentication methods and connectivity. For example, some options support fingerprint, PIN, and card verification, along with multiple connect modes (USB, RS485, TCP/IP, U-disk) and power requirements (9V/1A). Start by choosing your primary method (e.g., fingerprint for high security) and then decide if you also want a backup method (PIN or card) and network reporting for monitoring.

Small offices or households can benefit from mechanical keyed locksets for simplicity, privacy locks for interior doors, or basic smart options for convenience. For larger teams or higher security needs, biometric or smart locks with high user capacity and network reporting provide scalable access control—Product 5 supports up to 3000 fingerprint records and offers network or USB reporting, making it suitable for medium-sized environments, while Product 10 adds app-based management via TT Lock.

Keep the power supply and connections in good condition, and regularly inspect the door alignment and strike plate to ensure smooth operation. For networked or biometric options, verify that the chosen connection method (USB, RS485, TCP/IP, or U-disk) is available and properly wired. Clean fingerprint readers with a soft cloth to maintain accuracy, and have a backup access method (PIN or card) ready in case the primary method is temporarily unavailable.

Keyed locksets are simple and affordable for basic security. Keypad-pushbutton models suit doors shared by several users without keys. Biometric options deliver higher security and quick access with fingerprint sensing. Privacy locks are ideal for interior doors where you need controlled privacy, while smart/biometric combinations (like those with app control or card support) fit modern offices seeking centralized management and audit trails.

Look for high user capacity and network features to signal commercial use, such as fingerprint support for thousands of users and reporting capabilities (Product 5). For residential or small-office settings, simpler keyed or privacy options (Product 2 or Product 6) or a basic biometric lock can provide adequate security with easy operation. Smart-lock variants (Product 10) are ideal when remote management via a mobile app is a priority.