KeySafe C500 Pro review
KeySafe C500 Pro Wall Mounted Key Safe
By Tom Calder
This is the long-running model from The Key Safe Company (the Supra UK business), and its second generation now appears on the LPCB Red Book at A1 (SR1) with Secured by Design backing. It is fully mechanical, so there is no battery to fail. It costs more than the plain Master Lock boxes and less than the P500 Pro, which adds an anti-tamper plate and a steel vault liner.
- Best for
- A family or care team who want a key safe with a security grade you can check on the LPCB register.
- Skip it if
- Your wall is render or pebbledash
as of 21 Oct 2026, 10:37 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →
Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- Listed on the LPCB Red Book to LPS 1175 Issue 8 at A1 (SR1), so the rating can be verified
- Mechanical lock with no battery or app, which suits carers and older relatives
- Weather cover over the keypad; 2-year warranty, extended to 5 years when registered with the maker
Worth knowing
- Maker says it keeps its rating only on flat brick, blockwork or good concrete, not render or pebbledash
- Each digit can be used once and in any order, giving 4,096 codes, far fewer than the ark Tamo
- Push-button designs show wear on the code buttons over time, so change the code now and then
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Our review
The Key Safe Company's second-generation C500 Pro is a mechanical push-button key box with no battery, app or Wi-Fi to fail. What matters most is its paperwork: certification to LPS 1175 Issue 8 and Secured by Design's police backing, which it keeps only when fixed to flat brick, blockwork or sound concrete. It suits families and care teams who need carers in without a key handover.
What the ratings mean
LPS 1175 is the Loss Prevention Certification Board's standard for resistance to forced entry, published in BRE's Red Book; Issue 8 is the edition the maker cites, and A1 (SR1) is the grade recorded for this product in our data, the same grade as the P500 Pro and ark Tamo. Secured by Design is the police's official security initiative, and products that meet its Police Preferred Specification can carry its mark. Neither mark means your insurer accepts a key safe as security, so ask.
What it is
The body is a single-piece zinc alloy casting, 149 by 81 by 63mm and 1.8kg, with stainless steel hinge pins and an ABS weather cover over the keypad. Inside is 108 by 52 by 25mm with a hook for up to six keys. The 12 push buttons set a code of 5 to 7 digits (up to 12 are possible) in any order, each digit used once, which gives 4,096 combinations; a turn-twist dial opens it one-handed, with an anti-pick mechanism, and the included tool lets you change the code as often as you like. The box holds the safe, the cover, an instruction guide with fitting template, four security screws and the code-changing tool.
Fitting it to a British wall
The maker is specific: the certification and police approval apply only when the safe is fixed directly to flat brick, blockwork or good-quality concrete, and fitting it to any other substrate voids both. Render and pebbledash are out. You drill four holes with a 5mm masonry bit at least 70mm long, no closer than 150mm to any edge of the wall, and drive the supplied self-tapping masonry screws with a Torx T30 bit; the bit is not in the box, and the maker sells a fitting pack. The screws cannot be reused, so moving the safe means new fixings and new holes. Choose a spot out of sight with light enough for a carer at night.
How it compares
The P500 Pro has the same outer size with an anti-tamper plate that stops unauthorised code changes and a stainless steel interior vault; it weighs 2.0kg and gives up interior space, 81 by 51 by 23mm against 108 by 52 by 25mm here, so a chunky fob fits the C500 Pro more easily. The ark Tamo on the comparison allows repeated digits for about 9.7 million codes by its maker's count, has backlit buttons running on a coin cell, and its Secured by Design listing covers render up to 20mm, using the maker's render screws and wall plugs sold separately, which makes it the answer for a rendered house; it is heavier at 2.1kg and stands 72mm off the wall.
Living with it
There is nothing to charge. The weather cover keeps rain off the keypad, and the maker's suggestion to refresh the code now and then is sound because fingers polish the digits that get used. The maker's page says five years as standard in one place and two years, extended to five on online registration, in another, so register the product when you buy it. The Key Safe Company (Supra's UK arm) sells it direct, with phone support and an installation video for this model.
Our verdict
Buy it if you need carers, family or a cleaner to get in reliably, your wall is brick, block or concrete, and you want a rating you can look up. Skip it if the wall is rendered or pebbledashed (the Tamo is the one for that), if you want tamper protection and only have small keys (the P500 Pro), or if you want a smart lock with an audit trail, which is a different product; our SwitchBot Lock Pro vs Nuki guide covers that route.
A researched review, built from the maker's specs, manual and UK listings; facts checked 21 Oct 2026. Sources: The Key Safe Company: C500 Pro key safe (2nd generation); The Key Safe Company: DIY installation guidance; The Key Safe Company: P500 Pro key safe (2nd generation).
Who shouldn't buy this
Your wall is render or pebbledash: the maker's rating does not apply there, so look at the ark Tamo (approved on render up to 20mm, per the Secured by Design register) or the Burton Keyguard XL.
Key specs
| Security rating | LPCB LPS 1175 Issue 8, A1 (SR1); Secured by Design |
| Lock | 12-button push, mechanical |
| Holds | Up to 6 keys; 108 x 52 x 25 mm inside |
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the UK price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one
Best for Households where several people know the code and an accidental or unwanted code change would be a real problem.
as of 21 Oct 2026, 10:37 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Best for Anyone who wants a memorable code with repeat digits (such as a date) and backlit buttons for use at night.
as of 21 Oct 2026, 10:37 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Best for A register-listed key safe at a lower price, for a household that wants room for several sets of keys.
as of 21 Oct 2026, 10:37 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.Questions
What security rating does the KeySafe C500 Pro have?
The maker lists LPCB certification to LPS 1175 Issue 8 and Secured by Design (Police Preferred Specification); our data records the grade as A1 (SR1). The rating applies only when it is fitted to flat brick, blockwork or good-quality concrete.
Can the C500 Pro be fitted to a rendered or pebbledash wall?
No. The Key Safe Company says it was tested and certified for standard house brick and concrete only, and that fitting it to render or pebbledash voids the LPS certification and police accreditation. The ark Tamo is listed for render up to 20mm.
How many keys fit in the KeySafe C500 Pro?
Up to six keys on the integral hook, in an interior of 108 by 52 by 25mm. The maker says key fobs and Chubb keys fit.
How many code combinations does the C500 Pro have?
4,096. Each of the 12 digits can be used once per code, entered in any order, and the maker recommends a code of 5 to 7 digits.
Does the KeySafe C500 Pro need a battery?
No. It is fully mechanical, with no power, app or internet connection, so there is nothing to go flat.
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