Introduction
This manual provides essential instructions for the setup, operation, and maintenance of your Uniclife Fireproof Document Box (Model 5133-BK). This product is designed to offer secure storage for important documents and valuables, featuring fireproof and water-resistant properties, a dual locking system (combination and key), and a portable design.
Safety Information
- Keep the keys in a secure location separate from the document box.
- Do not store the combination code inside the box.
- Ensure the box is closed and locked properly to maintain its protective features.
- While the box offers fire and water resistance, it is not completely impervious to extreme conditions. Always follow local safety guidelines for storing valuables.
Product Overview
Components
- Fireproof Document Box
- Integrated 4-Digit Combination Lock
- Key Lock (with backup keys)
- Ergonomic Carrying Handle
- Soft Felt Mat (internal lining)
Dimensions and Capacity
The Uniclife Fireproof Document Box is designed to accommodate A4 and letter-sized papers without folding. Its internal dimensions provide ample space for various valuables.

Image: The document box open, illustrating its large capacity suitable for A4 documents. Key dimensions are shown: 12.8 inches (32.5 cm) length, 10.7 inches (27 cm) width, and 4 inches (10 cm) height. The lid depth is 4.1 inches (10.4 cm).
Construction and Features
The box features a robust multi-layer construction for enhanced protection.

Image: Diagram illustrating the fireproof construction. It shows an outer metal coating (anti-scratch & water-resistant), a fireproof material interlayer (heat-insulating & flame-retardant), and an inner metal plate (ultra-tough & impact-resistant).

Image: A composite image highlighting key features: the combination and key lock for security, the soft felt mat inside to prevent scratches, and the ergonomic handle for comfortable portability.
Setup
Setting Your Personal Combination
The document box comes with a default combination of 0-0-0-0. Follow these steps to set your personal 4-digit combination:
- Unlock the box with the default code: Ensure the dials are set to 0-0-0-0 and turn the key cylinder to the unlock position.
- Push the internal lever from A to B: Locate the small lever on the inside of the lock mechanism. While the box is open, push this lever from position 'A' to position 'B'.
- Roll the dials to set your new code: With the lever in position 'B', rotate the number dials to your desired 4-digit combination. Choose a memorable but secure code.
- Push the internal lever back to A: Once your new code is set, return the internal lever from position 'B' back to 'A'. Your new combination is now set.
Important: Remember your new combination. If you forget it, refer to the "Forgot Combination" section under Troubleshooting.

Image: A visual guide showing the four steps to set a new combination: 1. Unlock with default code, 2. Push internal lever A to B, 3. Set new code on dials, 4. Push internal lever B back to A.
Using the Key Lock
The box also includes a key lock for additional security or as an alternative to the combination. Insert one of the provided keys into the keyhole and turn it to lock or unlock the box. Keep backup keys in a safe, separate location.
Operation
Opening the Box
- Using the Combination: Rotate the dials to your set 4-digit combination. Turn the key cylinder to the unlock position. The lid will then be free to open.
- Using the Key: Insert a key into the keyhole and turn it to the unlock position. The lid will then be free to open.
Closing and Securing the Box
- Close the lid firmly.
- To lock with combination: Scramble the dials after closing the lid.
- To lock with key: Insert the key, turn it to the lock position, and remove the key.
Always ensure the box is securely locked to protect its contents.
Maintenance
- Clean the exterior of the box with a soft, damp cloth. Avoid abrasive cleaners or solvents.
- Periodically check the lock mechanism for smooth operation. Do not force the lock if it feels stiff.
- Store the box in a dry environment to prolong its lifespan.
Troubleshooting
Forgot Combination
If you forget your set combination, you can recover it using the backup keys and a specific procedure:
- Insert the key & turn right: Insert one of your backup keys into the keyhole and turn it clockwise to the unlock position.
- Press & hold the back tab: While the key is turned, locate and press the small tab on the back of the combination lock mechanism. Hold it down.
- Gently roll the digit wheel: While holding the tab, gently rotate the first digit wheel (from left to right) until you feel a slight resistance or click. This indicates the correct digit.
- Repeat for remaining digits: Repeat step 3 for the second, third, and fourth digit wheels. Once all four digits are found, this is your current combination.
Note: This recovery method requires the key to be in the unlock position. If you do not have the key, combination recovery is not possible.

Image: A visual guide showing the four steps to recover a lost combination: 1. Insert key and turn right, 2. Press and hold the back tab, 3. Gently roll digit wheel until resistance, 4. Correct digit found.
Lock Mechanism Feels Stiff
If the combination dials or key turn stiffly, apply a small amount of graphite lubricant (not oil-based) to the moving parts. Do not force the mechanism.
Specifications
| Feature | Detail |
|---|---|
| Brand | Uniclife |
| Model Number | 5133-BK |
| Product Dimensions (D x W x H) | 4"D x 11"W x 13"H (10.16 cm D x 27.94 cm W x 33.02 cm H) |
| Chamber Depth | 4.1 Inches (10.4 cm) |
| Lock Type | Mechanical Code Lock & Key Lock |
| Color | Combo Lock (Black) |
| Material | Metal |
| Item Weight | 3.1 Kilograms (6.83 lbs) |
| Fire Resistance | Up to 1300 °F (704 °C) for 1 hour |
| Water Resistance | Splash resistant |
Warranty and Support
Uniclife products are manufactured to high-quality standards. For warranty information, technical support, or any inquiries regarding your document box, please refer to the official Uniclife website or contact their customer service directly. Please have your model number (5133-BK) and purchase details available when contacting support.