Introduction
The SentrySafe FHW40100 is a robust and reliable lock box designed to safeguard your valuable possessions from fire and water damage. This manual provides essential information for the proper setup, operation, and maintenance of your safe.
Key features include UL Classified fire protection for 30 minutes at 1550°F, ETL Verified water submersion protection for 72 hours, and a secure key lock mechanism. Its portable design with integrated carrying handles makes it convenient for home or office use.
Setup and First Use
Unpacking
Carefully remove the SentrySafe FHW40100 from its packaging. Inspect the unit for any signs of damage. Retain all packaging materials for future transport or if a return is necessary.

Figure 1: SentrySafe FHW40100 Lock Box in a home setting, showcasing its compact design.
Key Operation
Your SentrySafe FHW40100 comes with two keys. The key lock mechanism is designed for secure closure. To unlock, insert the key and turn it. To lock, close the lid and turn the key to the locked position.

Figure 2: A hand demonstrating the insertion of a key into the SentrySafe FHW40100 lock mechanism.
Placement
Place the lock box on a flat, stable surface. The integrated feet on the bottom help keep it elevated. Consider a location that is easily accessible in an emergency but also discreet for security.

Figure 3: The SentrySafe FHW40100 positioned on a shelf, illustrating its suitability for discreet storage.
Operating Instructions
Opening the Safe
- Insert the key into the lock.
- Turn the key clockwise to the unlocked position.
- Press the latch release button (if applicable) or lift the lid directly.
Closing and Locking the Safe
- Ensure the contents are properly placed inside and the lid is clear of obstructions.
- Close the lid firmly until it clicks into place.
- Insert the key and turn it counter-clockwise to the locked position. Remove the key.
Storing Documents and Valuables
The SentrySafe FHW40100 is designed to accommodate letter-size hanging files and folders (sold separately). This allows for organized storage of important documents such as passports, birth certificates, and legal papers. It also provides ample space for small valuables, DVDs, and USBs.

Figure 4: The interior of the SentrySafe FHW40100, demonstrating its capacity for letter-sized hanging files.

Figure 5: An example of various documents and small valuables securely stored within the safe.
Maintenance
Cleaning
Wipe the exterior of the safe with a soft, damp cloth. Avoid using abrasive cleaners or solvents, as these can damage the finish. Ensure the interior remains dry to protect stored items.
Key Care
Keep your keys in a secure location, separate from the safe. Do not store keys inside the safe. If keys are lost, contact SentrySafe customer support for assistance.
Troubleshooting
Lid Not Closing Properly
- Check for any obstructions preventing the lid from fully closing.
- Ensure the internal contents are not overfilling the safe.
- Verify that the lid's sealing gasket is clean and free of debris.
Key Not Turning
- Ensure the key is fully inserted into the lock.
- Apply gentle pressure while turning the key. Do not force it.
- Check for any debris in the keyhole.
Specifications
| Feature | Detail |
|---|---|
| Model Number | FHW40100 |
| Exterior Dimensions (H x W x D) | 14.1 in. x 16.6 in. x 13.8 in. |
| Interior Dimensions (H x W x D) | 11.6 in. x 12 in. x 8.1 in. |
| Capacity | 0.66 Cubic Feet (18.55 Liters) |
| Item Weight | 41 Pounds |
| Fire Protection | UL Classified for 1/2 hour at 1550°F |
| Water Protection | ETL Verified for 72 hours of water submersion |
| Lock Type | Key Lock (includes two keys) |
| Color | Dark Gray |
| Material | Captured Fire Insulation |

Figure 6: Visual representation of the SentrySafe FHW40100's dimensions and protective features.
Warranty and Support
Manufacturer's Warranty
The SentrySafe FHW40100 comes with a Limited One Year Manufacturer Warranty. For specific terms and conditions, please refer to the warranty documentation included with your product or visit the official SentrySafe website.
Customer Support
For any questions, technical assistance, or warranty claims, please contact SentrySafe customer support. Contact information can be found on the product packaging or the official SentrySafe website. Please have your model number (FHW40100) and serial number ready when contacting support.
You can also register your product on the SentrySafe website for after-fire replacement services.







