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Stealth HS4 UL Home and Office Safe

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Weight: 191 lbs

Inside Dimensions: 21"H x 15"W x 13"D

Outside Dimensions: 24"H x 18"W x 20"D (Add 1 ⅝” to D for Handle)

Cubic Feet: 2.37

Burglar Rating: RSC

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Stealth HS4 UL Home and Office Safe

Passing the UL RSC burglary tests with the highest scores, the Stealth HS4 is made with a 12 gauge solid steel door and body. Add in the 2-way 6 solid steel, 1.25" thick locking bolts combined with razor thin door gaps and you have yourself an extremely secure, pry-resistant UL Approved Home Safe. With the Stealth UL home safes you get real security, tested and rated by an independent agency, Underwriters Laboratories.


The Stealth HS4 home safe includes the UL Approved NL UR-2020 High Security Electronic Lock standard. This lock is the most reliable lock in the safe industry and is assembled and tested in the USA. The lock is also protected by a hard plate and internal re-locker that will keep the bolts locked if a thief were to attempt a punch or drill attack. The S&G Mechanical lock and NL Redundant Lock are also available options.

In addition to the top notch security, the Stealth HS4 Home and Office Safe comes with a 1 hour fire rating at 1200°. This ensures your valuables stay safe and cool inside with the interior temperature never passing 350 degrees F. Stealth also adds an intumescent door seal that expands to multiple times its size during a fire to prevent smoke from entering the safe keeping your contents safe and secure inside.

The Stealth HS4 comes standard with a door panel organizer on the back of the door with two zippered pockets that allow for additional storage space of your small valuables. Conveniently store your passport, some cash and other small valuables in the pockets on the back of the door.

The Stealth HS4 Home and Office Safe also includes an electrical outlet kit with 3 outlets and 2 USB slots so that you can charge your electronics inside the safe.

The interior of this home safe comes with one carpeted shelf with attractive leather lining. The shelf is adjustable or removable to best fit your needs.

These safes are styled with a chrome L shaped drop down turn handle and a textured black finish. Four bolt down holes and mounting hardware is included to secure the safe to the floor.

Stealth believes in and stands behind the UL Home and Office Safe Line by offering a 2 year warranty on all components of the safe and a lifetime warranty against house fire, attempted break-in and actual break-in.

Specifications

External Dimensions: 24"H x 18"W x 20"D (Add 1 ⅝” to D for Handle)
Internal Dimensions: 21"H x 15"W x 13"D
Weight: 191 lbs

Security Features

  • UL RSC Residential Security Container Burglary Rating
  • 60 Minute Fire Rating at 1200º F
    • Heat Expandable Door Seal for Extra Fire Protection
  • 12 Gauge Steel Door & Body
  • 6 Solid Steel Locking Bolts – 1.25” in Diameter
    • 2-Way Locking Bolt System
    • 3 Active Bolts & 3 Deadbolts
  • UL Approved High Security Electronic Lock
    • Protected by Hard Plate & Internal Re-Locker
    • Mechanical Dial Lock Upgrade Available
  • 4 Pre-Drilled Bolt Down Holes to Secure Safe Down

Extra Features

  • Gray Fabric Interior with Leather Lined Shelf
    • 1 Adjustable/Removable Shelf
  • Pre-Installed Electrical Outlet Kit Inside
    • 3 Outlet Plug-Ins & 2 USB Slots
  • 2 Zippered Storage Pockets on Interior of Door
  • Extremely Durable Armored Black Paint
  • Chrome L-Shape Turn Handle
  • Lifetime Burglary & Fire Warranty
    • Covers Break-In, Attempted Break-In & House Fire
  • 2 Year Parts & Labor Warranty

Interior Features

Shelving & Storage

The entire interior is lined with gray carpet to protect your valuables from receiving scratches while stored inside. The leather-lined shelf can be adjusted or removed to best fit your needs.

✓ 1 Leather-Lined Shelf (Adjustable/Removable)

✓ 2 Small Zippered Storage Pockets

✓ Gray Carpeted Interior (to prevent scratching)

✓ Pre-Installed Electrical Outlet (3 Plug-ins & 2 USB Slots)


One Adjustable Shelf

Leather-Lined Carpeted Shelf For Organized Storage

Home Safe

Door Panel Pockets

Zippered Storage Pockets for Smaller Valuable Storage
Home Safe

Electrical Power Outlet

3 Plug-ins & 2 USB Slots for Plugging in Electronics, Lights, etc.
Home Safe


Additional Features

Armored Black Paint

Extremely Durable Unique Finish
Home Safe

Chrome Handle


Easy-to-Use L-Shape Turn Handle
Home Safe

External Hinges

Allows Full 180º Door Opening
Home Safe

Four Bolt Down Holes

Hardware Included to Secure Safe Down
Home Safe


Lock Information

UL Listed Electronic Lock Information and Instructional Guides

The NL UR-2020 Electronic Lock is not only extremely reliable, but entirely protected.

TOP FEATURES:

✓ UL Listed Electronic Device

✓ Customizable 6-Digit Code

✓ External Battery Compartment

✓ Low Battery Indicator

✓ Combination Memory (code stays set even if battery is changed)

✓ 1/4" Thick Steel Hardplate (protects against drill attacks)

✓ Internal Relocker (protects against punch attacks)

✓ Chrome Keypad

✓ Mechanical Dial Combination Lock Available

Home Safe
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Customer Reviews

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Mammoth Safe and Stealth UL50 Review

I was in the market for a large safe and had looked at all the options in the $1500-$3000 range. I was very close to purchasing a Liberty USA 50 safe, or one of its Liberty variants from Tractor Supply, Sportsman’s Warehouse, etc. In fact, I was finishing my research on the Liberty when I discovered the Stealth brand when reading this review; https://www.expertsafereviews.com/liberty-usa-50-gun-safe-review/ In hindsight, that review is one of the most fair and accurate reviews I found on any product, and it also provided comparable alternatives. Kudo to the authors!

I’m usually pretty brand loyal and have owned a Liberty Lincoln safe for 25 years. I would still purchase the USA 50 had I not discovered the Stealth UL50. I researched all the information I could find about the UL50, with a particular focus on customer reviews and photos. I typically find customer photos are often a more accurate depiction of the actual product than marketing photos, which is why I’m also including photos in this review. However, the photos provided by Stealth of the UL50 on their website, and Mammoth’s site, are really spot on.

From a security perspective, I was looking for; thickness of the steel body and the door needed to be at least 12 gauge, the gap between the door and body needed to be minimal, and the doors needed to have a decent number/size of active bolts or bars. Lasty, I really wanted the top and bottom of the doors to have bolts/bars without having to pay over $3k to get them. The Stealth UL50 met or exceeded the Liberty USA 50 in each of these categories.

Although fire ratings are worth comparing, for me the reality is there will always damage to a certain extent, whether the fire is 1200 degrees or 1400 degrees, and I certainly won’t be checking the duration of fire with a stopwatch. Still, the fire rating of the USA 50 and the UL50 are the same.

Once you have compared a lot of safes you know there is a wide range in quality, especially when looking inside. Many appear unfinished, with rough / undressed welds, thin paint or coatings, and poor fitting shelving / interiors. Not so with Stealth, the fit and finish is very good. The reconfigurable Molle door system is also a huge bonus! Because I was looking for a safe to go in my garage, I also wanted a durable/industrial type finish and the Stealth coating is perfect for my needs. Granted, the finish may hide weld dressings and other finish details, but that and the durability is exactly why I like the Stealth coating so much. My Liberty safe is in my office and has a nice gloss finish; however, that is not what I wanted in my garage.

Frankly, I am extremely pleased with my UL50 and have zero regrets for purchasing it. However, there is one minor recommendation for improvement. Although I really like the way the power cable plugs into the safe (similar to a TV, PC, etc.), I recommend moving the cable connection from the right side to the back of the safe. Why? The current placement isn’t very stealth (yes, I did) and I prefer not seeing a cable sticking out from the side of the safe. I understand this was to enable the back of the safe to sit flush with the wall, so moving the cable connection from the center of the fight side to the very rear of the right side would also be a good option. I ended up drilling a hole through the rear wall of the safe for cable entry and then rewired the power outlet. This is a minor issue.

I have added a light kit and a dehumidifier to the safe, and I will add guns once I’m satisfied with the humidity level. Based on initial testing, it appears I will need the larger Peet dehumidifier to maintain relative humidity below 50%.

So what about Mammoth Safes? One-word summary; Wow!

I compared several companies that sell the Stealth safe when I found Mammoth. Mammoth has comparable pricing including shipping to other vendors. However, they have no tax and I also found a coupon, so when combined, Mammoth saved me several hundred dollars over the next closest company. That said; I was somewhat hesitant to order initially from Mammoth because they are a relatively new company without a lot of reviews. Thankfully there was just enough information on the web that I felt fairly confident that the advertisement was not a scam.

I really appreciate Mammoth’s efficient ordering, communication and delivery process….simply impressive! From ordering to delivery, California to South Carolina, in 6 days……impressive! The safe was very well packed, and I received it with no damage. Mammoth has done their customer service homework and it shows. Between Mammoth’s pricing, customer service and Stealth’s product quality…..I have and will continue to highly recommend both companies to anyone needing a safe!!! Well done!

Hollon 500

Excellent experience interacting /ordering from mammoth safes and Shellah was informative and helped to guide my purchase options. Recommend

If you want the best

This safe is awesome! It provides such a great piece of mind and I couldn't have asked for a better company to work with. They made the process surprisingly simple. Very satisfied customer!

Good home safe for wall

High quality wall safe, doesn't stick out too far so I'm planning on putting a painting right infront for hidden protection. Thank you so much!

Secure

Big fan of the size of this thing and the security, fits under my bed, in the back of my truck.

Easy to install

Was super easy to install and attach to my wall studs. Safe came undamaged and in perfect condition.

quality

very satisfied with the this floor safe, I've bought some before which were double the price and Hollon easily beats the quality from those brands

Very happy

i recently purchased the Hollon black hawk safe and I couldn't be happier with my purchase. the size of this safe is perfect for my needs, as it has a 16 gun capacity and is very spacious. it took a bit longer than expected to arrive

Very happy

i recently purchased the Hollon black hawk safe and I couldn't be happier with my purchase. the size of this safe is perfect for my needs, as it has a 16 gun capacity and is very spacious. it took a bit longer than expected to arrive

Great service and no issues!

Purchased this safe and the customer service from Shellah was impeccable. Friendly customer service with you every step of the way until delivery. Would definitely purchase again. Nice job Mammoth.

Top-notch customer service and safe quality

Customer service here is impeccable and my safe arrived in peak condition.

Top-notch customer service and safe quality

Customer service here is impeccable and my safe arrived in peak condition.

Really spacious for my needs

This safe is incredibly spacious, on the INSIDE and OUTSIDE! more than I expected because it's so slim and fits right between my husbands bed and dresser

Really spacious for my needs

This safe is incredibly spacious, on the INSIDE and OUTSIDE! more than I expected because it's so slim and fits right between my husbands bed and dresser

Very hidden

Installing the safe was easier than expected, and it's very hidden. Goes deep into my floor.

Hollon is #1

Will always run towards Hollon when purchasing for myself or family. Safe took a while to get here but aside from that it was worth it.

Hollon is #1

Will always run towards Hollon when purchasing for myself or family. Safe took a while to get here but aside from that it was worth it.

Durable and Dependable safe..

Was shocked with the durablity of this thing, it looks, feels, and IS extremely durable.

Durable and Dependable safe..

Was shocked with the durablity of this thing, it looks, feels, and IS extremely durable.

Cool lock feature

I like the silent mode feature in case of a break in, A+ safe.

Good safe

great value for the price

Good safe

great value for the price

Used for my coin collection

I bought this safe with the intent to hide all of my coin collection I've mustered up over the years, and this safe does that perfectly. All my questions were answered.

Gardall is Good

well built. quality and workmanship is excellent.

Fire Proof Safe

the Hollon HS-500 came as described and expected. Perfect for securing and protecting valued documents from the threat of fire.

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