--- product_id: 258454460 title: "SentrySafe HD4100 Fireproof Safe and Waterproof Safe with Key Lock 0.65 Cubic Feet , black" brand: "sentrysafe" price: "£607.62" currency: GBP in_stock: true reviews_count: 5 category: "Sentry Safe" url: https://www.desertcart.co.uk/products/258454460-sentrysafe-hd4100-fireproof-safe-and-waterproof-safe-with-key-lock store_origin: GB region: United Kingdom --- # Waterproof 72hr submersion Secure key lock system UL fireproof 1550ºF/30min SentrySafe HD4100 Fireproof Safe and Waterproof Safe with Key Lock 0.65 Cubic Feet , black **Brand:** sentrysafe **Price:** £607.62 **Availability:** ✅ In Stock ## Summary > 🔥💧 Lock in safety, unlock peace of mind. ## Quick Answers - **What is this?** SentrySafe HD4100 Fireproof Safe and Waterproof Safe with Key Lock 0.65 Cubic Feet , black by sentrysafe - **How much does it cost?** £607.62 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/258454460-sentrysafe-hd4100-fireproof-safe-and-waterproof-safe-with-key-lock) ## Best For - sentrysafe enthusiasts ## Why This Product - Trusted sentrysafe brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fireproof Fortress:** UL-classified to withstand 1550ºF for 30 minutes, shielding your irreplaceable documents from devastating flames. - • **Double-Key Security:** Privacy key lock with two keys ensures only you control access, locking tight even under extreme fire conditions. - • **Organized & Spacious:** Fits up to 40 hanging folders with built-in straps for passports and USB drives—your essential documents, perfectly arranged. - • **Flood-Proof Peace of Mind:** ETL-verified waterproof protection keeps your valuables safe even after 72 hours underwater—because disasters don’t wait. - • **Fire Replacement Guarantee:** SentrySafe has your back—if fire damages your safe, they’ll replace it, helping you bounce back faster. ## Overview The SentrySafe HD4100 is a compact, UL-classified fireproof and ETL-verified waterproof safe designed to protect critical documents and digital media. With a 0.65 cubic feet capacity, it fits up to 40 hanging folders and includes a secure key lock system with two keys. Its fire-resistant insulation withstands 1550ºF for 30 minutes, while waterproofing protects contents for up to 72 hours underwater. Ideal for home or office, it offers organized storage with built-in straps and a fire replacement guarantee for ultimate security and peace of mind. ## Description Protect your most important documents with the SentrySafe HD4100 fireproof waterproof file safe, designed for reliable everyday protection at home. Ideal as a document safe, file box, or lock box for passports, Social Security cards, property records, birth certificates, and insurance documents, it helps safeguard the items you cannot easily replace. This fireproof safe box features fire-resistant construction to help protect paper documents during high heat, while waterproof protection adds peace of mind during floods, burst pipes, or storm-related damage. Inside, the safe fits hanging file folders and includes built-in straps to keep smaller valuables like passports, ID cards, certificates, cash, and USB drives organized and secure. A dependable key lock helps prevent unauthorized access and keeps the lid closed during fire conditions. Two keys are included for convenience. With its compact, portable design and clean black finish, this home safe fits easily into closets, offices, or storage areas while delivering practical protection for important documents and personal valuables. For homeowners, renters, and remote workers, the SentrySafe HD4100 offers a smart balance of protection, organization, and everyday convenience in a fireproof and waterproof safe for documents and valuables. Review: Water Resistance - All quality Review: PÉSIMA ATENCIÓN - He devuelto ese artículo por que no cumplió mis expectativas relativo al nivel de seguridad que ofrece pero no se me ha hecho el reembolso aún cuándo ya aparece cómo devuelto; así que para mi ha sido una terrible experiencia ## Features - ADVANCED FIRE PROTECTION: Fire safe box is UL classified for fire endurance (1/2 hour at 1550ºF) to protect critical home or business documents, records and valuables from fire damage; ETL verified (1/2 hour at 1550ºF) to protect CDs, memory sticks, and other digital media; holds up to 40 standard 8.5 in. x 11 in. hanging folders (not included) - WATER RESISTANT: Security safe is ETL verified for water submersion up to 72 hours; providing peace of mind in the event of flood. Weight 39 pounds - KEY LOCK: Fire resistant safe has a privacy key lock to keep unwanted viewers away and prevent the lid from opening in the event of fire; includes two keys - SPACIOUS INTERIOR: Large file safe fits wherever you need and accommodates letter size hanging files and folders; Built-in straps for easy storage of passports and other documents; Interior: 11.5 in. H x 12 in. W x 8.1 in. D, exterior: 14.3 in. H x 15.5 in. W x 13.5 in. D - AFTER FIRE REPLACEMENT GUARANTEE: In the event of a fire, SentrySafe will replace your fire-resistant product to help get you back on your feet ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00GE57DFK | | Additional Features | Fire Resistant | | Alarm | Visual | | Best Sellers Rank | #63,471 in Home Improvement ( See Top 100 in Home Improvement ) #179 in Home Safes & Safe Accessories | | Brand | SentrySafe | | Brand Name | SentrySafe | | Capacity | 0.65 cubic feet | | Chamber Depth | 8.1 Inches | | Chamber Height | 11.5 Inches | | Chamber Width | 12 Inches | | Colour | Black | | Control Type | Key Control | | Country of Publication | USA | | Customer Reviews | 4.5 out of 5 stars 14,377 Reviews | | Included Components | Privacy Key Lock, Sentrysafe Hd4100Cg Fire-Safe Waterproof File, Warranty | | Item Dimensions D x W x H | 34.3D x 39.4W x 36.3H Centimeters | | Item Type Name | Fireproof Safe and Waterproof Safe | | Item Weight | 17.62 kg | | Lock Type | Key | | Manufacturer | SentrySafe | | Manufacturer Part Number | HD4100 | | Material | Captured Fire Insulation | | Material Type | Captured Fire Insulation | | Model Number | HD4100 | | Mounting Type | Floor Mount | | Product Dimensions | 34.3D x 39.4W x 36.3H Centimeters | | Smart Home Compatibility | Not Smart Home Compatible | | UPC | 049074021450 | | Unit Count | 1.0 Count | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** SentrySafe - **Product Dimensions:** 34.3D x 39.4W x 36.3H Centimeters - **Lock Type:** Electronic, Key - **Colour:** Black - **Capacity:** 0.65 Cubic Feet - **Special Feature:** Fire Resistant - **Mounting Type:** Floor Mount - **Included Components:** Warranty, Sentrysafe Hd4100Cg Fire-Safe Waterproof File, Privacy Key Lock - **Item Weight:** 17.62 kg - **Alarm:** Visual ## Images ![SentrySafe HD4100 Fireproof Safe and Waterproof Safe with Key Lock 0.65 Cubic Feet , black - Image 1](https://m.media-amazon.com/images/I/91kGgNniuyL.jpg) ![SentrySafe HD4100 Fireproof Safe and Waterproof Safe with Key Lock 0.65 Cubic Feet , black - Image 2](https://m.media-amazon.com/images/I/71-zDmTQrvL.jpg) ![SentrySafe HD4100 Fireproof Safe and Waterproof Safe with Key Lock 0.65 Cubic Feet , black - Image 3](https://m.media-amazon.com/images/I/71Wpo8+wXSL.jpg) ![SentrySafe HD4100 Fireproof Safe and Waterproof Safe with Key Lock 0.65 Cubic Feet , black - Image 4](https://m.media-amazon.com/images/I/611h058iy-L.jpg) ![SentrySafe HD4100 Fireproof Safe and Waterproof Safe with Key Lock 0.65 Cubic Feet , black - Image 5](https://m.media-amazon.com/images/I/61kyR-HKCvL.jpg) ## Questions & Answers **Q: I really need to know the cubic footage of this safe to compare to other ones. Do you know?** A: I measured the inside and found it to be:9 1/2" tall, by 8" deep, by 12" wideAdditionally, the recess in the lid is 2"tall by 8" deep, by 12" wide.All told, the cubic inches are 1104 and cubic footage would be 0.639You can stand a 3-ring binder upright or on it's side. **Q: There does not seem to be any handles,but are there at least handholds for moving it?** A: No handles, nothing to grab **Q: Can this fit legal-paper sized documents?** A: No, it isn't wide enough. It only will fit regular size file folders (for 8.5 x 11" documents). **Q: What is the cubic foot size of the SentrySafe HD4100CG?** A: the opening is 8" x 12" wide, with a ridge that holds a hanging folder just off the bottom, about 9" hanging depth. there is a little head room so the folder tabs will clear the top when closed. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Water Resistance *by O***O on 7 November 2023* All quality ### ⭐ PÉSIMA ATENCIÓN *by C***N on 7 November 2024* He devuelto ese artículo por que no cumplió mis expectativas relativo al nivel de seguridad que ofrece pero no se me ha hecho el reembolso aún cuándo ya aparece cómo devuelto; así que para mi ha sido una terrible experiencia ### ⭐⭐⭐⭐⭐ Heavy and durable *by R***Y on 15 February 2026* 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. ## Frequently Bought Together - 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 - Pendaflex Hanging File Folders, Letter Size, Assorted Colors, 1/5-Cut Adjustable Tabs, 25 Per Box (81663) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/258454460-sentrysafe-hd4100-fireproof-safe-and-waterproof-safe-with-key-lock](https://www.desertcart.co.uk/products/258454460-sentrysafe-hd4100-fireproof-safe-and-waterproof-safe-with-key-lock) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-12*