SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock Review
A SentrySafe pick in Security Lock Boxes that focuses on real-world usability Key figures include 1, 2 hour, 72 hours.
- Box is UL Classified to endure 1/2 hour at 1550°F to protect irreplaceable documents, small valuables, DVDs, and USBs from fire
- Highlights the small safe box is ETL Verified for 72 hours of water submersion offering peace of mind in the event of a flood
- Built for fireproof lock box features a tubular key lock for added security and to prevent the lid from opening in the event of a fire; Includes 2 keys
- Practical detail: convenient carrying handle on the fireproof document box assists with ease of transportation and portability
- Exterior is15.4 inch W x 14.3 inch D x 6.6 inch H; interior is 12.8 inch W x 8.5 inch D x 4.4 inch H; Medium capacity 0.28 cubic feet
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Pros
- Highlights box is UL Classified to endure 1/2 hour at 1550°F to protect irreplaceable documents, small valuables, DVDs, and USBs from fire
- Hub price snapshot around $62.99 (USD; check live Amazon pricing)
- Hub specs call out useful numbers such as 1, 2 hour, 1550
- The small safe box is ETL Verified for 72 hours of water submersion offering peace of mind in the event of a flood
- SentrySafe presence in Security Lock Boxes with confirmed ProductHub review status
Cons
- Live Amazon price, stock, and seller can change after the hub snapshot
- Editorial review uses listing specs — not an independent lab stress test
- Compare against other security lock boxes options if you need a different feature mix
At a glance
A SentrySafe pick in Security Lock Boxes that focuses on real-world usability Key figures include 1, 2 hour, 72 hours.
Our take: keep the SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock on your shortlist for security lock boxes if 1, 2 hour, 72 hours, 2 , 0.28 , 14.3 align with how you will actually use it.
- Box is UL Classified to endure 1/2 hour at 1550°F to protect irreplaceable documents, small valuables, DVDs, and USBs from fire
- Highlights the small safe box is ETL Verified for 72 hours of water submersion offering peace of mind in the event of a flood
- Built for fireproof lock box features a tubular key lock for added security and to prevent the lid from opening in the event of a fire; Includes 2 keys
- Practical detail: convenient carrying handle on the fireproof document box assists with ease of transportation and portability
- Exterior is15.4 inch W x 14.3 inch D x 6.6 inch H; interior is 12.8 inch W x 8.5 inch D x 4.4 inch H; Medium capacity 0.28 cubic feet
Product Specifications
- Brand
- SentrySafe
- Model
- CHW20221
- Color
- Charcoal Gray
- Size
- 0.28 Cubic Feet
- Dimensions
- 14.3 x 15.4 x 6.6 inches
- Weight
- 20 pounds
- Warranty
- One year limited warranty
- In the box
- 1
What This Review Covers
Buying in security lock boxes is easier when numbers stay honest. Here we review the SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock using hub facts for SentrySafe, with emphasis on measurements and constraints you can verify.
At harvest, ProductHub showed availability as In Stock with a price snapshot near $62.99. Rank context: #14 in Security Lock Boxes.
Feature language from the listing (rewritten in the hero bullets, preserved here for context) includes points such as: FIREPROOF: Box is UL Classified to endure 1/2 hour at 1550°F to protect irreplaceable documents, small valuables, DVDs, and USBs from fire; WATERPROOF: The small safe box is ETL Verified for 72 hours of water submersion offering peace of mind in the event of a flood; KEY LOCK: Fireproof lock box features a tubular key lock for added security and to prevent the lid from opening in the event of a fire; Includes 2 keys.
When This Makes Sense

This style of safes and lockboxes suits shoppers who already know they need security lock boxes coverage and want a SentrySafe option with transparent listing details.
It is a weaker match if you need a fully custom install, a different capacity class, or a feature the hub row simply does not list.
Numbers Before Marketing

The specs table mirrors hub labels and values. Highlights include Brand: SentrySafe; Model: CHW20221; Color: Charcoal Gray; Size: 0.28 Cubic Feet; Dimensions: 14.3 x 15.4 x 6.6 inches.
Because Home Defense Tips pages are meant to help you choose — not to invent capacity — any dimensions, weights, ranges, or pack counts in this article are copied from hub features/specs rather than guessed.
Translated into daily use, the standout listing claims still revolve around: FIREPROOF: Box is UL Classified to endure 1/2 hour at 1550°F to protect irreplaceable documents, small valuables, DVDs, and USBs from fire.
Practical Caveats

Trade-offs are normal in security lock boxes. A design that wins on portability may give up enclosed storage; a long wireless claim may assume open line-of-sight; a high load rating usually assumes even distribution.
Our Lock Pick badge is editorial shorthand for “worth considering in this category,” not a guarantee for every floor plan, campsite, or property layout.
Where It Sits in the Category
Against generic no-name alternatives, SentrySafe listings often win on clearer packaging and easier returns through Amazon — still read the live seller and fulfillment line.
Against premium ecosystems, this unit may look simpler. That can be a feature if you want fewer apps and more straightforward hardware.
Recommendation Frame
Buy the SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock if the hub numbers and feature set line up with your security lock boxes job. Skip it if you need a capability the listing does not document.
Next step: use the buy box for the live Amazon offer (tag homedefensetips-20), then confirm price and stock before checkout.
Extended Notes From the Hub Listing
We also watch for missing details. If the hub row does not list a measurement, we do not invent one — that keeps the review honest even when the Amazon title is long.
If a feature reads like marketing emphasis, we still preserve its numeric claims when present, then explain what those numbers mean for storage, camping, or security workflows.
On the spec sheet, Model is listed as CHW20221, which is the kind of concrete detail that should drive a buy/skip call.
One listing point worth translating into plain language: WATERPROOF: The small safe box is ETL Verified for 72 hours of water submersion offering peace of mind in the event of a flood. Notable figures in that claim include 72 hours.
On the spec sheet, Dimensions is listed as 14.3 x 15.4 x 6.6 inches, which is the kind of concrete detail that should drive a buy/skip call.
When we compare security lock boxes options, we start with footprint, install friction, and whether the listed capacities match a realistic home or field setup rather than a brochure photo.
On the spec sheet, Warranty is listed as One year limited warranty, which is the kind of concrete detail that should drive a buy/skip call.
On the spec sheet, Weight is listed as 20 pounds, which is the kind of concrete detail that should drive a buy/skip call.
Because this review is anchored to ProductHub facts for SentrySafe, we keep invented dimensions out of the copy and only repeat numbers that already appear in features or specs.
One listing point worth translating into plain language: MEASUREMENTS: Exterior is15.4 inch W x 14.3 inch D x 6.6 inch H; interior is 12.8 inch W x 8.5 inch D x 4.4 inch H; Medium capacity 0.28 cubic feet. Notable figures in that claim include 4 inch, 14.3 inch, 6.6 inch.
One listing point worth translating into plain language: FIREPROOF: Box is UL Classified to endure 1/2 hour at 1550°F to protect irreplaceable documents, small valuables, DVDs, and USBs from fire. Notable figures in that claim include 1, 2 hour, 1550.
On the spec sheet, Size is listed as 0.28 Cubic Feet, which is the kind of concrete detail that should drive a buy/skip call.
Further Detail
One listing point worth translating into plain language: FIREPROOF: Box is UL Classified to endure 1/2 hour at 1550°F to protect irreplaceable documents, small valuables, DVDs, and USBs from fire. Notable figures in that claim include 1, 2 hour, 1550.
We also watch for missing details. If the hub row does not list a measurement, we do not invent one — that keeps the review honest even when the Amazon title is long.
Category context matters: a strong security lock boxes pick for one household layout can be the wrong shape for another. Use the specs table as the tie-breaker.
On the spec sheet, Weight is listed as 20 pounds, which is the kind of concrete detail that should drive a buy/skip call.
On the spec sheet, Brand is listed as SentrySafe, which is the kind of concrete detail that should drive a buy/skip call.
On the spec sheet, Size is listed as 0.28 Cubic Feet, which is the kind of concrete detail that should drive a buy/skip call.
The Bottom Line
Our take: keep the SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock on your shortlist for security lock boxes if 1, 2 hour, 72 hours, 2 , 0.28 , 14.3 align with how you will actually use it. That is the practical case for this Lock Pick.
View on Amazon →As an Amazon Associate, Home Defense Tips earns from qualifying purchases.
Frequently Asked Questions
Who is this security lock boxes product for?
Buyers who want a SentrySafe option in security lock boxes and prefer documented specs over vague marketing claims.
How much does it cost?
The hub price snapshot was $62.99 USD. Amazon pricing changes frequently, so treat that as a reference point only.
What stands out about the SentrySafe Charcoal Gray Fireproof and Waterproof Safe Box with Key Lock?
The hub listing emphasizes 1, 2 hour, 72 hours, 2 , 4 inch, 14.3 inch within security lock boxes, alongside SentrySafe branding and the feature set summarized in this review.



