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SentrySafe

SentrySafe Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, Ex. 14.3 x 15.5 x 13.5 inches, HD4100

  • Based on 14,091 reviews
Condition: New
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Prime Day Deal · 9% off was $74.98

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  • – 6-month term
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Jun 28
Order within 1 hour and 13 minutes
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Features

  • FIREPROOF: Safe is UL Classified to endure 1/2 hour at 1550F and keep interior temperatures safe for irreplaceable documents, valuables, DVDs, and USBs
  • WATERPROOF: Safe box is ETL Verified for 72 hours of protection in water up to 8 inches deep offering peace of mind in the event of a flood
  • COLOR: The fireproof file box has a black exterior finish
  • KEYLOCK: Fireproof safe contains a flat key that prevents the lid from opening due to fire, includes 2 keys
  • DOCUMENT SAFE: Important document organizer features built-in straps for easy storage of passports, social security cards, and birth certificates

Description

Introducing the SentrySafe Black Fireproof and Waterproof Safe, a premium solution for safeguarding your most valuable possessions. This expertly designed safe box is perfect for those who prioritize security and peace of mind. With exterior dimensions of 14.x 15.x 13.inches, this compact yet robust safe is ideal for home use, providing ample space to store important documents, cash, and other valuables. The SentrySafe HD is not just a safe, it’s a fortress for your essentials, offering unparalleled protection against fire and water damage. Whether you’re looking for a fireproof document box or a reliable lock box for your money, this safe is engineered to meet all your security needs. Crafted with advanced fireproof and waterproof technology, the SentrySafe HD ensures that your documents and valuables remain intact even in the face of disaster. This fireproof safe can withstand temperatures up to 1550°F for up to 30 minutes, making it a reliable fireproof document safe for your home. Additionally, its waterproof seal keeps your items dry, even when submerged in water, making it an ideal choice for those seeking a home safe that is both fireproof and waterproof. The safes key lock mechanism provides an added layer of security, ensuring that only you have access to your treasured belongings. This versatile safe box is designed to protect what matters most. The SentrySafe HD is more than just a small safe, it’s a comprehensive security solution for your home. Its sleek black design complements any decor, while its durable construction guarantees long-lasting protection. Perfect for storing important documents, jewelry, and other valuables, this fireproof and waterproof safe is a must-have for anyone looking to secure their possessions against unforeseen events. With its compact size, it fits seamlessly into any space, making it an ideal choice for those in need of small safes for home use. Invest in the SentrySafe Black Fireproof and Waterproof Safe today and experience the ultimate in security and peace of mind.

Brand: SentrySafe


Product Dimensions: 13.5"D x 15.5"W x 14.3"H


Lock Type: Key


Color: black


Capacity: 0.65 Cubic Feet


Material: Steel and Fire-Resistant Composites


Special Feature: Fireproof, Waterproof


Mounting Type: Floor Mount


Included Components: Privacy Key Lock, Sentrysafe Hd4100Cg Fire-Safe Waterproof File, Warranty


Item Weight: 38.9 Pounds


Lock Type: Key


Additional Features: Fireproof, Waterproof


Mounting Type: Floor Mount


Alarm: Lock


Water Resistance Level: Waterproof


Smart Home Compatibility: Not Smart Home Compatible


Control Type: Key Control


Item Dimensions D x W x H: 13.5"D x 15.5"W x 14.3"H


Capacity: 0.65 Cubic Feet


Item Weight: 38.9 Pounds


Chamber Height: 11.5 Inches


Chamber Width: 12 Inches


Chamber Depth: 8.1 Inches


Brand Name: SentrySafe


Included Components: Privacy Key Lock, Sentrysafe Hd4100Cg Fire-Safe Waterproof File, Warranty


Model Number: HD4100


UPC: 049074021450


Manufacturer Warranty Description: One year limited warranty


Manufacturer Part Number: HD4100


Item Type Name: Fireproof Safe and Waterproof Safe


Manufacturer: SentrySafe


Unit Count: 1.0 Count


Color: black


Material Type: Steel and Fire-Resistant Composites


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Heavy and durable Heavy and durable
Pattern Name: Safe
Review Image by Rony
Review Image by Rony
I finally settled on this safe for my valuables after some long research on Amazon and after returning another safe of different brand I had bought earlier. Oh, boy, this safe is really heavy and durable. It requires a lot of strength to carry. The walls and the cover are very thick. No sharp edges which is a plus for such a heavy item. Good space inside. Has a good lock and its easy to open with a key. However, after some use, the rubber washer inside the door fell off and I had to glue it back in place. Relatively low profile making it easier to hide. Unlike many other safes on Amazon, this one seems well-made with precision. ... show more
Reviewed in the United States on February 15, 2026 Reviewed in the United States on February 15, 2026 by Rony
    • Well made
Pattern Name: Safe
VERY STURDY.
Reviewed in the United States on May 28, 2026 by Ms. Br
    • Great quality safe with loads of room and at a great price point!
Pattern Name: Safe
I was very surprised at how nice this safe is. For the price point is was a really good purchase and the quality is outstanding. The box will hold a great deal. Much more than I anticipate having and it fits our needs perfectly. I do want to caution you, it is very heavy. I wasn't expecting it to be as heavy as it is, but that isn't a deal breaker for me. I feel I received a quality product that will last two life times, honestly and I am very pleased with it. Yes, I highly recommend this item. ... show more
Reviewed in the United States on May 21, 2026 by Amazon Customer
    • Heavy safe. Good for backup security
Pattern Name: Safe
Good safe . VERY heavy. Be aware before you buy. 39 lbs and bulky. Using as a NOK box. Only issue I have is the plastic latch on the lid is hard to close/open. Not a deal breaker as this is a 2x per year update item but do t undywhy it is not a smooth latching.
Reviewed in the United States on April 26, 2026 by Douglas Collins
    • Recommend! Recommend!
Pattern Name: Safe
Review Image by Amazon customer
I’m very pleased with this safe. It’s spacious and easily holds all my important documents. The build is extremely sturdy and stable, giving great peace of mind. The key mechanism works great and is easy to use. At about 40 pounds, it’s heavy enough to feel secure but still portable when needed. Overall, it’s a solid, reliable safe. ... show more
Reviewed in the United States on June 3, 2026 Reviewed in the United States on June 3, 2026 by Amazon customer
    • Document Safe
Pattern Name: Safe
I bought this a few months ago. It has been working fine, and so far I like it. It is a little heavy. The size is reasonable. It looks sturdy and I think it is a good value for the money.
Reviewed in the United States on May 22, 2026 by Tonya
    • Safe for safe documents
Pattern Name: Safe
This safe is exactly we we wanted to hold important documents. It is built strong and very heavy. It has plenty of room to hold documents that are 8x11. We like that it's sturdy and waterproof
Reviewed in the United States on June 3, 2026 by Bridget R Crouse
    • Fantastic customer support
Pattern Name: Safe
The customer service at SentrySafe/Masterlock is incredible. I had a small issue with my safe, and they made the situation right. I absolutely recommend this product, or another from the Masterlock/SentrySafe product line, because of their response to my issue alone. The safe is alright. It's nothing to write home about, and that is to be expected at under $100. It is the exact width of a "normal" manila folder, and it would be nice if it was just *slightly* wider. I would like if the lid had some sort of resistance to prevent it from being slammed. I don't have any major issues with it and I don't feel as if I'm going to break anything unless there is a manufacturing defect or I mishandle it. The handle does flex a little if you try to open the safe while it is locked, but it fine with normal use. The key isn't reinforced and will bend if you push on it the wrong way. The gasket might fall off and need to be put back into position before shutting the lid again. Those issues don't worry me now that I've dealt with their customer service department. I contacted them for one of the issues I listed above and they fixed the problem quickly and completely. Fantastic customer support. Fantastic customer support. ... show more
Reviewed in the United States on August 1, 2025 by Alex

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