SentrySafe SFW123DSB: Specs, Owner Reviews and Where to Buy

Who it's for

Best overall in Best Safe for Comic Books – 5 Picks Checked for CGC Slab Fit: Collectors with up to about 23 CGC slabs or 50 raw keys who want an hour of UL fire protection and a water rating; it weighs about 86 lb and the dial is slow.
Best battery-free home safe in Best Home Safe Under $500 – 10 Picks Sorted by Fire, Theft and Guns: Owners who open the safe a few times a year and worry about dead batteries; the dial is slow, and owners often need a few tries.
Best overall in Best Safe for Sports Cards – 3 Picks Sized by Slab Count: Collectors with 100 to 300 graded slabs plus a few sealed boxes who want an hour of UL fire protection and room for drawer inserts; it weighs about 86 lb and the dial is slow.
Best overall in Best Fireproof Document Safe – 5 UL-Rated Picks Compared: Households that want one hour of UL-classified fire protection for papers and room to stand letter-size folders upright; it weighs about 86 lb and the dial is slow.
Best battery-free lock in Best Fireproof Safe for Home – 6 UL-Rated Picks Compared: Anyone storing papers and valuables they rarely touch who never wants a dead battery between them and their passport; the dial is slower to open.

Owners at Walmart and Home Depot say the dial often takes several tries
Too narrow for slabs lying flat; the shelf has to come out
Sealed body traps moisture without a desiccant
Interior collects moisture without a desiccant, a common owner warning
Several owners on SentrySafe's site say the combination dial is hard to open or stopped working

Brand	SentrySafe
Manufacturer	SentrySafe
Model	SFW123DSB
Part number	SFW123DSB
Dimensions (L x W x H)	16.3 inches x 19.3 inches x 17.8 inches
Item weight	86.3 pounds
Color	Medium Grey
Size	1.23 cu.ft.
Warranty	Limited 1 Year Warranty
Lock	Dial combination plus key lock
Fire rating	UL Classified, 1 hour at 1700°F (927°C)
Water rating	ETL Verified, 8 in of water for 24 hours
Interior capacity	1.19 cu ft per SentrySafe (1.23 cu ft on the Amazon listing)
Exterior	17.8 H x 16.3 W x 19.3 D in
Weight	About 86 lb
Bolts	Four live-locking bolts (Lowe's listing)
Bolt-down	Hardware included
Drop rating	ETL Verified 15-ft fall during a fire
Interior	13.8 H x 12.6 W x 11.9 D in
Capacity	1.23 cu ft
CGC slabs (my math)	About 23 standing, shelf removed

Top rows from the Amazon listing; the rest from the maker pages we checked.

FIREPROOF: The safe is UL Classified to endure 1 hour at 1700°F and keep interior temperatures safe for irreplaceable documents, valuables, DVDs, and USBs
WATERPROOF: The home safe is ETL Verified for 24 hours of protection in water up to 8 inches deep offering peace of mind in the event of a flood
MAXIMUM SECURITY: Combination safe features 4 live-locking bolts, steel construction, pry-resistant hinge bar, shelf, and bolt-down hardware
FALL RESISTANT: The safe box is ETL verified to withstand a 15-foot fall during a fire and remain closed
MEASUREMENTS: Exterior:16.3 inch W x 19.3 inch D x 17.8 inch H; Interior: 12.6 inch W x 11.9 inch D x 13.8 inch H; Large 1.23 cubic foot capacity; Weights: 86 pounds
WARRANTY: Should your fire safe be damaged by fire or water, SentrySafe will provide a replacement safe so the things that matter most are protected for generations to come

From the product's Amazon listing, as of Nov 7, 2026, 7:59 PM UTC. The seller writes this text, not us, and Amazon may change it.

Summarized from 7 owner discussions and review pages we read.

The combination dial often needs several attempts to open
Moisture and even corrosion inside without a desiccant
The combination dial is hard to open or stops working for some owners
Units arriving dented
Plastic dial and handle feel cheap for the size
SFW123 owners note the manual says anchoring through the floor ends the waterproof seal, and that condensation can build up inside