A three-digit combination cam lock with a knob and open/close indicator is a convenient and user-friendly locking solution for applications requiring moderate security. This type of lock is commonly used in environments like schools, gyms, offices, and storage units, where users benefit from a quick-access, keyless lock with visual feedback on lock status. The open/close indicator helps ensure users know when their locker or cabinet is secured, while the knob enables easy operation.

Key Features to Consider:

1. Three-Digit Combination:

   • 1,000 Possible Combinations: Offers moderate security suitable for personal lockers, cabinets, and other low- to medium-security storage.
   • User-Resettable Code: Many models allow users to set their own code, which is convenient for shared spaces or frequently rotating access.
   • Quick Code Entry: The dials are smooth and easy to turn, making it quick to set and enter combinations.

2. Knob for Easy Operation:

   • Turn Knob Mechanism: Once the code is entered, users can simply turn the knob to open or lock the unit, making operation simple and reliable.
   • Ergonomic Design: The knob allows for a firm grip, enabling users to operate the lock comfortably and without the need for additional tools.
   • Automatic Relock: When the dials are scrambled after closing, the lock automatically secures, which prevents accidental unlocking.

3. Open/Close Indicator:

   • Visual Status Indicator: The indicator, often displayed in red and green or as “open” and “closed,” provides users with a clear view of the lock’s current status.
   • Enhanced Security Awareness: This feature is particularly useful in shared environments, helping users confirm at a glance whether the lock is properly secured.
   • User Convenience: Reduces user error and offers peace of mind, as users can quickly check if the lock is in the desired position before leaving.

4. Durability and Material:

   • Metal Construction: Typically constructed from zinc alloy or stainless steel, providing robustness and resistance to tampering or wear.
   • Corrosion-Resistant Finish: Important for humid or light outdoor settings, this ensures the lock remains durable over time.
   • Fit for Metal and Plastic Doors: Can be installed on a variety of materials, allowing versatility for use on lockers, cabinets, and enclosures.

5. Compatibility and Installation:

   • Standard Cam Lock Mechanism: Compatible with standard cam lock cutouts, making it easy to install on most cabinets and locker doors.
   • Multiple Cam Options: Straight and offset cam variations allow compatibility with different door thicknesses and closure styles.
   • Quick Installation: Most models are easy to install with basic tools, suitable for retrofitting or replacing old locks.

6. Additional Security Features:

   • Anti-Pick Design: Many models come with tamper-resistant features to deter unauthorized access.
   • Battery-Free Operation: As a fully mechanical lock, it requires no batteries or power source, offering maintenance-free security.
   • Emergency Access (Optional): Some models provide an optional override feature for administrators in case of forgotten codes, but this isn’t always standard on all models.

Common Applications:

• Gym and School Lockers: Ideal for personal storage, allowing users to set their own codes and easily see if their locker is secure.
• Office Storage and Drawers: Adds secure, keyless access to cabinets, enabling safe storage for personal belongings or documents.
• Public Lockers: Perfect for rental or shared locker spaces where users need to quickly see the lock status to ensure security.
• Home Cabinets and Storage: Suitable for securing valuable items or personal documents at home, with a convenient locking mechanism.

Benefits:

• User-Friendly and Secure: Provides keyless access with an intuitive open/close indicator, giving users visual confirmation of lock status.
• Reduced User Error: The status indicator minimizes mistakes, helping users ensure their locker or cabinet is secured.
• Maintenance-Free Operation: No batteries or electronic parts means reliable performance with minimal upkeep.

Examples of Three-Digit Combination Cam Locks with Knob and Open/Close Indicator:

1. Combi-Cam E-Series Combination Lock: Offers a three-digit code with a knob and an open/close indicator, making it ideal for lockers and cabinets.
2. Ojmar 3-Digit Mechanical Cam Lock with Status Indicator: Known for its durability and ease of use, this model includes a knob and clear status indicator, popular in schools and workplaces.
3. Master Lock 1714 Series with Indicator: Often used in gyms and public lockers, this lock combines a three-digit combination, knob, and clear open/close indicator.

A three-digit combination cam lock with a knob and open/close indicator provides a secure, low-maintenance, and easy-to-use locking solution for personal and shared storage spaces, making it an excellent choice for various commercial and residential applications.