SentrySafe HD4100 Fireproof & Waterproof Safe | UL-Rated 1,550°F | Key Lock

The SentrySafe HD4100 is a UL-classified fireproof and ETL-verified waterproof safe rated to 1,550°F for 30 minutes and waterproof to 8 inches deep for 72 hours. At 14.3 × 15.5 × 13.5 inches, it fits on a closet shelf or under a desk and is sized for passports, birth certificates, USB drives, and small valuables. Priced at $100.

• UL-classified fire protection — 1,550°F for 30 minutes — independently tested and certified by Underwriters Laboratories; interior temperatures stay within safe limits for paper documents, DVDs, and USB drives during a standard residential structure fire. UL classification is a third-party verified rating, not a manufacturer claim.
• ETL-verified waterproof — 8 inches deep for 72 hours — independently verified flood protection; contents remain dry during basement flooding, firefighting water exposure, or storm surge up to the rated depth and duration.
• Flat key lock with 2 keys included — mechanical lock prevents the lid from opening under fire-induced expansion or forced entry; flat key profile reduces snag risk during emergency retrieval; second key stored separately provides backup access.
• Built-in document straps — internal retention system holds passports, social security cards, birth certificates, and standard file folders in place; prevents contents from shifting during transport or a fire event.
• Compact form factor — 14.3 × 15.5 × 13.5 inches — fits standard closet shelves, under desks, and in vehicle trunks; low-profile black exterior doesn’t draw attention in a home office or bedroom.
• Suitable for documents, cash, USB drives, and DVDs — interior is sized for the items most commonly lost in a house fire: identification documents, backup drives, and small valuables.

Specifications