Rank #5 in Best Key Safe 2026: 10 Ranked, and the Numbers That Don't Add Up
Rhino Lock Secure Pro Combination Key Safe, 300 cm³
Price and rating as shown on Amazon when we collected them. Both change.
The Rhino Lock Secure Pro is a wall-mounted combination key safe: a four-digit mechanical code lock, an emergency key for when the code is forgotten, a listed internal capacity of 300 cm³ and a black finish. It sits at number five in this guide and costs £26.95, against £68.95 for the most expensive box in the list. It carries 4.5 out of 5 from 1,387 ratings.
Its headline figures are the ones that survive arithmetic. The listing measures the box at 10 cm deep, 6.7 cm wide and 13.5 cm high, which gives an exterior volume of roughly 905 cm³. A claimed 300 cm³ of internal space is about a third of that shell, so it fits — which is not true of every capacity claim in the guide, where the stated internal space is larger than the enclosure around it. What does not line up here is the review count: the page shows 1,387 ratings, while the star breakdown underneath adds up to 100 — 72 five-star, 17 four-star, 5 three-star, 1 two-star and 5 one-star. Two smaller disagreements sit in the same listing: the title says Secure Pro while the bullet headings say Rhino Lock Weather Resistant Pro, and the special features field says "Waterproof" where the water resistance level says "Water Resistant". Everything on this page is taken from the Amazon listing rather than from our own testing — we have not fitted this box to a wall.
How those 1,387 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £26.95 |
|---|---|
| Customer rating | 4.5 out of 5, from 1,387 ratings |
| Claimed internal capacity | 300 cubic centimetres |
| Item dimensions D x W x H | 10 x 6.7 x 13.5 centimetres |
| Exterior volume, calculated from those dimensions | About 905 cm³ |
| Chamber depth | 9 centimetres |
| Water resistance level | Water Resistant (the special features field says "Waterproof") |
| Model number | Rhino-0010 |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“I bought this Rhino Lock Secure Pro key safe to keep a backup key accessible without hiding it somewhere obvious. After using it for a while, I was happy enough with it that I bought a second one for another property.It feels very solid and heavy, which immediately gives confidence in the build quality. Once mounted, it feels secure and not at all flimsy or easy to tamper with. The weight and construction make it feel like a proper security product rather than a lightweight lock box.Setup was straightforward. Setting the combination was easy, and installation on the wall was simple enough with basic tools. The combination mechanism works smoothly, making it practical to give someone access without handing over a physical key.A feature I really like is the backup key. It's a sensible addition and gives peace of mind in case you ever forget the code.Overall, very good value for money given how solid and well made it feels. A reliable, secure key safe that's easy to set up and good enough that I didn't hesitate to buy another one.”
Verified purchase“Been installed outside the village hall a couple of years and used several times every week. Weatherproof and still looks good. It's great that it can be reset if it gets messed up. Fortunately it's only happened once! Would recommend.”
What it is up against
The rivals it was ranked against in Best Key Safe 2026: 10 Ranked, and the Numbers That Don't Add Up.
Questions people ask
How much space is inside the Rhino Lock Secure Pro?
The listing states a capacity of approximately 300 cm³ and a chamber depth of 9 cm, with an internal drawer included for smaller items.
Does 300 cm³ really fit in a box that size?
Yes. The listed exterior dimensions of 10 x 6.7 x 13.5 cm give roughly 905 cm³, so 300 cm³ is about a third of the shell. It is the capacity claim in this guide that holds up.
How many ratings does the Secure Pro have?
The product page shows 4.5 out of 5 from 1,387 ratings, but the star breakdown underneath adds up to 100 — 72 five-star, 17 four-star, 5 three-star, 1 two-star and 5 one-star.
What happens if I forget the code?
Rhino Lock supplies two code recovery keys and emergency key access, and the listing describes a patented code recovery system that lets the box be reset without paying for a locksmith.
Is the Secure Pro weatherproof?
The spec panel gives the water resistance level as Water Resistant, while the special features field says "Waterproof" — those two fields do not say the same thing. A reviewer reports it fitted outside a village hall for a couple of years and still looking good.
What is included with the Rhino Lock Secure Pro?
One key safe, one internal drawer, one setup instruction manual, two code recovery keys, four mounting screws and four wall plugs, plus a 30-day money back option and a 12-month manufacturer replacement service.
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