5 Best Lockboxes (Key Safes) - Ranked!

You should only buy a Police approved lockbox; that’s our position. Be wary of cheap key safes – they’re either cheaper imitations or Chinese knock-offs and too easy to break into.

If you’re looking for a quick conclusion, The Supra C500 is, without a doubt, the best lockbox available to buy. Just go ahead and buy it! It has so many positive reviews – pretty much all glowing and has lots of raving fans.
As it is one of three that has been approved by the Police, you shouldn’t really need to ask any further questions! But before we dive deep, let’s give you our winner, the runner-up and a budget option.


supra c500
Supra C500
  • Solid build
  • Police trusted
  • Most popular
Police Trusted


burton keyguard police approved
Burton XL
  • Police Approved
  • Dual Attack Tested
  • Feels Solid & Heavy
Police Trusted


MasterLock 5403D
  • Bigger version
  • Well priced
  • Easy to install
Our winner is a bit pricier than other models, so we can understand why you might look at other options. The question you should be asking is: why risk my family’s safety to save a few quid?
Beyond our top pick, you’ve landed on this page as you want to know which brand offers the best wall mounted safe? Or which push button key lock box alternatives are there (other than the winning product)?
First things first. The price of these security products has been dropping for a while now, so it’s a win for the consumer.
Yet there has been an explosion of the brands that make them, so how do you pick the best one for your needs
Simply go for the ones that only have Police Preferred accreditation.
There are only three that have this accreditation.  We have fully tested two of these:
The third one is the Master Lock Police Certified 5426EURD, but we must be open and tell you that we haven’t tested this one yet.

“​The Supra C500 is said to be as secure as your front door.”

We have used the above items at some point in the last 2 years, meaning we no longer need to hide the front door spare key behind the bin or underneath a rock*.

A well positioned and secure lockbox for keys offers peace of mind to different types of users. 

Now you know which one we think is our winner, it’s time for you to make up your mind.

With so many Chinese copycat items, we think it’s important for you to avoid the cheap imitations and go for the real thing. With that in mind, we ask that you read the reviews the of the items listed below as we give our favourite 5.

If you still want to hide it under a rock, you can buy a rock shaped lock box which should deter the most ardent of burglars.

Best Lockboxes in 2020

1. Supra C500 Key Safe

supra c500

This is a POLICE APPROVED push button key safe

  • Manufacturer: Supra
  • Weight: 1.9 Kg
  • Internal dimensions: 7.9 x 7.9 x 6.3 cm

The Supra C500 is the most secure lock box. No doubt about it!

It comes with a weatherproof cover made of plasticised rubber, helping to stop any rain or snow from weathering the item. As a bonus, it also acts to disguise the item from unwitting passers-by.

As tough as it is durable, the item is made of a heavy grade stainless steel and zinc-alloy and comes as a double wall construction.

If you’re interested, we actually have a more rounded and in-depth review of the Supra C500.

It is the only mechanical version that has been endorsed as ‘Secured by Design’ by the UK Police and is one a few insurance approved key safes i.e. It has received accreditation by the Loss Prevention Certification Board.They do have a comprehensive guide on door reinforcement which is worth a read.


  • The only mechanical police approved key safe.
  • Stores up to 6 keys.
  • 2 year guarantee.


  • Very expensive.
  • Instructions can confuse some people.

2. Master Lock - Large (5401D)

  • Manufacturer: Master Lock
  • Weight: 0.39 Kg
  • Internal dimensions: 22.8 x 16.6 x 4.8 cm

A long-time favourite, this model is designed to have up to 10,000 sequences.

It comes with four pre-drilled holes to the rear, allowing you to mark off the holes before drilling into brick, stone or masonry. This item can be fitted with standard DIY tools i.e. an 8mm drill will suffice. 

If the keys you’re going to store are for cylinder locks, then this will be good enough. However, with mortice lock keys, it is a bit fidgety.

The issue is that the top half of the design houses the locking mechanism. This eats up a fair bit of space, meaning the area is little tight, especially if your mortice key is bulky.

In this instance, we would recommend that you upgrade to the bigger Masterlock 5403EURD.

As for longevity and security, the shutter door protects the dials from weather, dirt and grime. The well-constructed zinc casing will frustrate vandals that might be tempted to use a hammer or saw(!)


  • Indoor and outdoor use.
  • Durable design and scratch proof mould.
  • 10,000 different combinations.


  • Can be a bit small for fobs or mortice lock keys.
  • The silver/grey colour does attract attention.

3. Sentinel Wall Mounted Lock Box

sentinel wall mounted lock box
  • Manufacturer: Sentinel
  • Weight: 0.80 Kg
  • Internal dimensions: 26.6 x 15.6 x 7 cm

Takes up to 10 Yale type keys. Like the Supra model described above, this is also keypad style.

The purchase comes with four screws and you’ll need an 8mm bit to screw into masonry.

The code can be any length and can be in any order, but any single number can only be used ONCE. It is a bit more complicated to use compared to combination locks, but some might consider a keypad style one easier to use.

It is fairly spacious inside and it feels like a well-designed product. It comes with a waterproof cover which also helps to give it a discreet look.


  • Push button digits.
  • Stores up to 10 keys.
  • Weather resistant with special paint.


  • Somewhat expensive.
  • Not as secure as some other locks.
  • Buttons can get stuck in frosty conditions.

4. MOFUT Weatherproof Wall Mounted Key Safe

mofut wall mounted keysafe
  • Manufacturer: MOFUT
  • Weight: 0.52 Kg
  • Internal dimensions: 9.0 x 8.0 x 3.2 cm

Our favourite thing about this product is the outer protective cover. It acts as a weather barrier to stop any snow or rain from getting inside, but it also does a really good job of camouflaging.

We’re not a fan of having your wall mounted item being easy to spot, so once the plasticised rubber cover is on, it seamlessly sits alongside other wall mounted bits and pieces such as a broadband box.

Other than that, it is well-built, has a modern feel about it and the size is pretty big inside – enough to hold cash, small items and credit cards.


  • Key hook inside allows easy hanging of keys.
  • Stores up to 10 keys and credit cards.
  • Comes with a protective waterproof cover.


  • A bit on the expensive side.
  • Digits can be hard to see during night-time.
  • Struggles to fit into tight spaces.

5. Rhino XL Combination Lock Box

rhino lockbox
  • Manufacturer: Rhino
  • Weight: 0.8 Kg
  • Internal dimensions: 14.5 x 10.5 x 5.5 cm

This combination lock by Rhino is a bigger size, meaning lots of space if you need to put more than a few keys in there. It is also a UK branded item, which is something we look out for.

There are many Chinese knock-off sellers that sell on Amazon and eBay, so with something as important as home security, we would always opt for a UK, USA or European based company that carries out more rigorous checks.

With the sizing of it, the case will hold car keys and fobs in addition to the regular items, cash and cards. It’s not quite big enough to leave your kids lunch in there, but the size is ample enough!


  • Largest key safe we have bought - lots of space!
  • UK branded item - feels more trusted
  • Rugged and attractive design


  • Some buyers say the digits can be a bit stiff.
  • The screws that come with it are not great.
  • On the edge of being a bit overpriced.

Where Can They Be Fitted?

Typically, they have been used in holiday let homes and apartments to give access to out of town visitors and holidaymakers to gain access to the home.

However, the usage of these security devices have increased (as described above) and some other places include:

  • Holiday homes and Bed and Breakfast stay
  • AirBnB accommodation for short term stays
  • Traditional offices and Co-working places
  • Regular homes and apartments
  • Access to garages and warehouses
  • Dockyards and shipping ports
  • Car rental locations and hot spots
Whilst ease of access is important, it needs to be balanced with having it in a discreet place which doesn’t attract attention. Perhaps choosing a colour that blends into the background of the surface it’s attached to will help i.e. so it doesn’t stand out against the brick.

Bear in mind that if you install the item not according to the manufacturer’s instructions, then it could invalidate any future house insurance claims. Read the installation guide properly before affixing it to a surface.

What About an Electronic Bluetooth Version - Pros and Cons

These days, you can get advanced smart devices. While electronic lock boxes can be seen as a modern upgrade, you should be cautious before you invest into one of these.

The best thing about this type of device is that you can specify exactly who gains access and you are given a log of the times the device was accessed. That is super secure in our eyes and gives you much more control. Everyone these days has a smartphone and it just takes an app on the phone to gain access.

However, the biggest disadvantage is when the signal fails or the connectivity is unreliable. If you need to gain access to a property for viewing or to give access to your cleaner for a set time and the signal is weak or the Bluetooth connectivity is not stable, then this is an unnecessary headache!

Added to the above, the cost is at least 2.5x what it costs compared to a traditional one, so you need to understand this before parting with your cash. In our opinion, the best electronic lockbox is the Bluetooth Master Lock 5441 EURD.

To see other reviews in the security section, please click here.