1. Introduction
Thank you for choosing the Puroma Key Lock Box. This manual provides detailed instructions for the proper installation, operation, and maintenance of your new key storage security device. Designed for high security and convenience, this lock box is ideal for storing house keys, access cards, and other small valuables, making it perfect for homes, offices, garages, rental properties, and more.

Image 1.1: The Puroma Key Lock Box, featuring its resettable 4-digit combination and internal key hook.
2. Product Features
- High-Security Construction: The lockbox body is crafted from premium aluminum alloy, providing robust protection against hammering, sawing, or prying attempts.
- Resettable 4-Digit Combination: Offers 10,000 possible combinations for enhanced security and personalized access.
- Large Storage Capacity: Internal dimensions of 3.54 x 2.36 x 1.46 inches (90 x 60 x 37 mm) comfortably accommodate up to 7 keys or multiple access cards.
- Upgraded Design with Detachable Hooks: Includes two internal hooks to keep keys organized and prevent them from falling out when the box is opened. The combination dials are protected by a sliding shield.
- Weatherproof Design: A practical protective shield guards the dials from sun, rain, and snow, extending the product's lifespan.
- Wide Application: Suitable for various indoor and outdoor key storage needs, including apartment entrances, garages, rental houses, and holiday homes.

Image 2.1: Visual representation of the lock box's key storage capability and key features like the detachable hook.

Image 2.2: Close-up views highlighting the resettable combination, weather shield, and durable aluminum alloy construction.

Image 2.3: Illustration of the lock box's upgraded features, such as the anti-pry design and user-friendly button.

Image 2.4: Illustration of the lock box's spacious interior, capable of holding multiple keys and cards.

Image 2.5: Examples of where the Puroma Key Lock Box can be installed, highlighting its versatility.
3. Setup and Installation
The Puroma Key Lock Box is designed for wall-mounted installation. Follow these steps to securely mount your lock box.
Package Contents:
- 1 x Puroma Key Lock Box
- 2 x Detachable Hooks
- 4 x Screws
- 4 x Expansion Plugs
Installation Steps:
- Step 1: Mark Positions
Place the lock box against the desired mounting surface. Using a pencil, mark the position of the four mounting holes on the wall.
- Step 2: Drill Holes
Using an impact drill, drill holes at the marked positions. Ensure the drill bit size is appropriate for the provided expansion plugs.
- Step 3: Insert Expansion Plugs
Gently tap the expansion plugs into the drilled holes with a hammer until they are flush with the wall surface.
- Step 4: Secure the Lock Box
Align the lock box with the installed expansion plugs. Insert the screws through the lock box's mounting holes and into the expansion plugs. Tighten the screws firmly with a Phillips screwdriver until the lock box is securely mounted to the wall.

Image 3.1: Step-by-step guide for wall mounting the key lock box.
Important Note: While the lock box is designed to be water-resistant, it is not 100% waterproof. For optimal longevity and protection, it is recommended to install the lock box in a sheltered location, such as under an awning or porch, to minimize direct exposure to heavy rain or snow.

Image 3.2: Visual reminder about the water-resistant nature and recommended installation location.
4. Operating Instructions: Setting Your Combination
The Puroma Key Lock Box comes with a factory default combination of 0-0-0-0. You can easily set your own personalized 4-digit combination.
Steps to Set/Reset Your Combination:
- Step 1: Open the Lock Box
Set the dials to the current combination (default is 0-0-0-0) and open the lock box door.
- Step 2: Locate and Push the Reset Button
Inside the lock box, locate the reset lever (usually marked 'RESET' or with an arrow). Push the reset lever from position 'A' to position 'B'.
- Step 3: Set Your New Combination
While the reset lever is in position 'B', rotate the dials to your desired new 4-digit combination. Choose a memorable but secure code.
- Step 4: Return the Reset Button
Push the reset lever back from position 'B' to position 'A'. Your new combination is now set. Close the lock box door and scramble the dials to lock it.

Image 4.1: Detailed steps for changing the lock box combination.
Important: It is highly recommended to write down your new combination and store it in a safe, secure place away from the lock box. If you forget your combination, there is no master key or override, and you will not be able to open the lock box.
5. Maintenance
To ensure the longevity and optimal performance of your Puroma Key Lock Box, follow these simple maintenance guidelines:
- Regular Cleaning: Wipe the exterior of the lock box with a soft, damp cloth to remove dust and grime. Avoid using abrasive cleaners or solvents that could damage the finish.
- Lubrication (Optional): If the combination dials become stiff over time, a small amount of silicone-based lubricant can be applied to the moving parts. Avoid oil-based lubricants as they can attract dirt.
- Weather Protection: As mentioned in the installation section, installing the lock box in a sheltered area will significantly extend its lifespan by protecting it from harsh weather conditions.
- Check Mounting: Periodically check the mounting screws to ensure they remain tight and the lock box is securely affixed to the wall.
6. Troubleshooting
If you encounter any issues with your Puroma Key Lock Box, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock box will not open. | Incorrect combination entered. Dials not aligned properly. Reset lever not fully returned to 'A' position after setting new code. | Double-check the combination. Ensure each number is precisely aligned with the indicator mark. If you recently changed the code, ensure the reset lever was fully pushed back to 'A'. If you forgot the code, unfortunately, there is no override. |
| Dials are stiff or hard to turn. | Accumulation of dirt or debris. Lack of lubrication. | Clean the dials and surrounding area. Apply a small amount of silicone-based lubricant to the moving parts of the dials. |
| Lock box feels loose on the wall. | Mounting screws have loosened. Improper installation. | Tighten the mounting screws. If the issue persists, consider re-installing with appropriate wall anchors for your wall type. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Puroma |
| Model Name | LB003 |
| Lock Type | Mechanical Code Lock (4-Digit Resettable Combination) |
| Material | Aluminum, Alloy Steel, Zinc |
| External Dimensions (L x W x H) | 4.72 x 3.46 x 1.77 inches (120 x 88 x 45 mm) |
| Internal Storage Capacity | Approx. 3.54 x 2.36 x 1.46 inches (90 x 60 x 37 mm) |
| Item Weight | 0.97 Pounds (approx. 15.5 ounces) |
| Color | Black & Gray |
| Included Components | Aluminum Zinc Alloy Lock Body, 2 x Detachable Hooks, Mounting Screws and Expansion Plugs. |
| Recommended Uses | Key Storage Lockbox for Home, Office, Garage, Apartment, Rental House, Holiday House |
8. Warranty and Support
For information regarding product warranty, returns, or technical support, please refer to the official Puroma website or contact Puroma customer service directly.
You can visit the Puroma store on Amazon for more products and information: Puroma Store