1. Introduction
This manual provides essential information for the proper use, setup, and maintenance of your HMF ODK100 Outdoor Case. Designed for maximum protection, this case is ideal for transporting sensitive equipment such as photography gear, drones, measuring instruments, and other valuable items. Please read these instructions carefully before using the product to ensure optimal performance and longevity.
2. Key Features
- Versatile Protection: Ideal for transporting delicate items like lenses, cameras, measuring instruments, or firearms.
- Robust Construction: Highly stable case made from impact-resistant plastic with foam inserts, ensuring waterproof and dustproof protection (IP67 rated).
- Customizable Interior: Features 3 x 45 mm (H) pre-cut grid foam layers, 1 x 10 mm (H) foam base, and convoluted foam in the lid for tailored equipment fitting.
- User-Friendly Design: Equipped with a foldable carrying handle, a pressure compensation valve, and eyelets for padlocks for practical handling and security.
- Dimensions: Exterior: 57 x 41.5 x 21.5 cm (including handle and latches). Interior: 50 x 35 x 19.5 cm (bottom part height: 14 cm, lid height: 5.5 cm). Weight: 4.65 kg.

Figure 2.1: The HMF ODK100 outdoor case in its closed state, highlighting its robust construction.
3. Setup and Foam Customization
The HMF ODK100 case features pre-cut grid foam for easy customization to fit your specific equipment. This allows for secure and snug storage, preventing movement and potential damage during transport.
3.1. Customizing the Grid Foam
- Assess Your Equipment: Arrange your items within the case to determine the optimal layout.
- Remove Foam Layers: The case includes three 45 mm high pre-cut grid foam layers. Carefully remove the layers you need to customize.
- Pluck Out Sections: The grid foam is perforated into small cubes. Gently pluck out the foam cubes that correspond to the shape of your equipment. Use a sharp knife for cleaner cuts if necessary, but typically, the perforations allow for easy removal by hand.
- Layering: Place the customized foam layers back into the case. Ensure the 10 mm foam base is at the bottom and the convoluted foam is in the lid to provide all-around protection.
- Test Fit: Close the case to ensure all items are held securely without excessive pressure on the lid. Adjust foam as needed.

Figure 3.1: Customizing the grid foam for a perfect fit for your equipment.

Figure 3.2: Internal foam layers and external dimensions of the case.
4. Operation
4.1. Opening and Closing the Case
To open the case, release the latches on the front. To close, align the lid and press down firmly until all latches click into place. Ensure a complete seal for waterproof and dustproof protection.
4.2. Using the Pressure Compensation Valve
The HMF ODK100 case is equipped with a pressure compensation valve. This valve allows for automatic pressure equalization, especially important during air travel or significant changes in altitude. To operate, simply unscrew the valve cap a few turns to allow air to flow, then tighten it again to maintain the seal. This prevents vacuum lock or pressure buildup that could make opening difficult or damage the case.
4.3. Securing the Case
The case features integrated eyelets designed for padlocks, allowing you to secure your valuable contents. Use appropriate padlocks (not included) for added security.

Figure 4.1: Location of the pressure compensation valve and padlock eyelets.
4.4. Waterproof and Dustproof Features
The HMF ODK100 case is rated IP67, meaning it is dust-tight and protected against immersion in water up to 1 meter for 30 minutes. Always ensure the lid is properly closed and latched to maintain this protection. The robust rubber seal around the lid ensures a tight closure.

Figure 4.2: The case demonstrating its waterproof and temperature-stable capabilities.
Video 4.1: This video demonstrates the durability and protective features of the HMF ODK100 outdoor case in various challenging outdoor environments, including water submersion and impact resistance.
5. Maintenance
To ensure the continued performance and longevity of your HMF ODK100 case, follow these simple maintenance guidelines:
- Cleaning: Wipe the exterior of the case with a damp cloth and mild soap. Avoid harsh chemicals or abrasive cleaners, as these can damage the plastic.
- Seal Inspection: Periodically inspect the rubber seal around the lid for any signs of wear, cracks, or debris. A clean and intact seal is crucial for maintaining the waterproof and dustproof rating.
- Foam Care: The foam inserts can be gently cleaned with a vacuum cleaner to remove dust and small debris. If heavily soiled, the foam may be hand-washed with mild soap and water, then thoroughly air-dried before reinserting into the case.
- Latch and Hinge Lubrication: If latches or hinges become stiff, apply a small amount of silicone-based lubricant to ensure smooth operation.
- Storage: Store the case in a cool, dry place away from direct sunlight when not in use for extended periods.
6. Troubleshooting
- Case is difficult to open: Check the pressure compensation valve. Unscrew it briefly to equalize pressure, then retighten.
- Lid does not close properly: Ensure no items are obstructing the seal. Check the rubber seal for debris or damage. Re-align the lid and apply even pressure when closing the latches.
- Equipment does not fit securely: Re-evaluate your foam customization. Ensure enough foam is removed to accommodate items without being too loose, and that sufficient foam remains to hold them firmly.
- Water or dust ingress: Immediately check the rubber seal for damage or foreign particles. Ensure all latches are fully engaged and the pressure valve is tightly closed.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | HMF |
| Model Number | 4010537105723 (ODK100-57CM-02) |
| Exterior Dimensions (L x W x H) | 57 x 41.5 x 21.5 cm |
| Interior Dimensions (L x W x H) | 50 x 35 x 19.5 cm (Bottom: 14 cm, Lid: 5.5 cm) |
| Weight | 4.65 kg |
| Material | Plastic, Polypropylene (PP), Rubber |
| Color | Black |
| Protection Rating | IP67 (Dustproof, Waterproof up to 1m for 30 min) |
| Temperature Stability | From -20°C to +80°C |
| Capacity | 50.9 Liters |
| Closure Type | Buckle latches |
| Handle Type | Foldable carrying handle |
| Special Features | Pressure compensation valve, Padlock eyelets |
8. Safety Information
- Do not exceed the maximum weight capacity of the case.
- Ensure the case is properly closed and latched before lifting or transporting.
- Avoid exposing the case to extreme temperatures beyond its specified range (-20°C to +80°C) for prolonged periods.
- Keep the case away from open flames or excessive heat sources.
- When using the pressure compensation valve, ensure it is securely tightened after use to maintain the waterproof seal.
9. Warranty and Support
For warranty information or technical support, please refer to the manufacturer's official website or contact HMF customer service directly. Keep your purchase receipt as proof of purchase.





