SentrySafe Master Lock Black Premium 2-Hour Fireproof Safe with Combination Dial, 1.2 cu-ft, STW123DUBML: Model STW123DUBML
- Extra LargeModel STW123DUBML
- Interior Capacity 1.19 cu.ft. cubic ft
- Price Range: 200-400

Security Protection
Fire Protection
Water Protection
Top of the Line Protection
Fire Protection
UL Classified to protect your valuables in a fire for 2 hours in up to 1850°F (1010°C)
Water Protection
ETL Verified water resistance to protect your valuables in up to 8 inches of water for up to 24 hours
Security Protection
More Information4 live-locking bolts, solid steel construction and pry-resistant hinge bars provide our best protection from forced entry and tool attacks
Overview
The Master Lock STW123DUBML Premium 2 Hour Fire and Water Safe offers the best protection in its class. Engineered from high-grade steel, it is designed, tested and UL Certified for unmatched performance. This safe is built to withstand extreme elements, providing 2-hour fire resistance in temperatures up to 1850° F and shielding against water for up to 24 hours. To defend against theft and impact, the door is fortified with 4 bolts, a pry-resistant hinge bar and a dual-key, combination lock. For added convenience, the interior features an organizational tray, shelf and door pocket. Plus, your safe is backed by a limited lifetime warranty—it’s covered for life.
Features
Combination Lock
Our 3 number factory-set combination locks are one of the most reliable form of securing your valuables.
Steel Construction
For maximum durability, longevity and the most reliable protection against theft, our safes are engineered with solid steel to safeguard your possessions year after year.
Limited Lifetime Warranty
We cover your product for life. If your safe ever fails due to defects in materials or workmanship, Master Lock will repair or replace it at no cost*. Please refer to the owner's manual for comprehensive details.
Pry-Resistant Hinge Bar
As an added layer of defense against theft and unauthorized access, each safe is designed with a pry-resistant hinge bar to keep the door secure and your items protected.
Premium Impact Resistance
During a fire, your safe may be vulnerable to falling through floors of a burning structure. Our safes are UL Classified to withstand impact from up to 15 feet, ensuring the product door remains closed and secure in the case of a fall.
Fire and Water Bolt Down Hardware
Robust bolt down hardware is included to secure the safe firmly in place and prevent theft attempts while maintaining fire and water protection.
Interior Organization
In addition to the security you expect from Master Lock, each Premium Fire Safe offers a thoughtfully-designed interior, with features like a key rack, door tray, deep door pocket, adjustable tray and shelf.
Digital Media Protection
Protect your essential electronic storage devices like tablets, phones, external hard drives and more. Our safes are engineered to shield your digital assets from fire, water, and theft, ensuring that your important data and memories remain safe and secure.
Specifications

Exterior Size
17.8 in H X 16.3 in W X 19.3 in D
Interior Size
13.8 in H X 12.6 in W X 11.9 in D
Capacity
1.19 cu.ft.
Lock Type
Combination
Peril Type
Security, Fire, Water
Weight
134.65 lb
Exterior Material
Steel-Cased Fire Insulation
Support
Product Manual
Download the latest owner’s manual for this product.
View Product ManualFAQs
Find answers to the most frequently asked questions.
View FAQsVideos
Guides to safe setup, troubleshooting, and other support needs.
View Videos