I first had a basic Master Lock key safe, the type that you have to scroll the numbers and align them. That turned out to be disastrous.

My airbnb guests were struggling to get the lockbox to open. It wasn’t clear if you aligned the numbers face on, or slightly lower or higher, and sometimes the box just wouldn’t open. Also, some of the airbnb guests would leave the correct numbers on display, so in effect the box was always open.

I soon enough realised that this was certainly not a safe solution, also, it seems that there are videos on YouTube showing you how you can crack the code, by gently rolling the numbers till you hear a different slight clicking sound.

The cavity was awkward, the keys would drop in the box in a way that made it difficult to close the box, I had to use a magnet sticker at the back of the box.

So then after extensive homework, I bought the 5441 digital masterlock from safe.co.uk

Their prices were the most competitive, and their service next to none.

This lockbox literally addressed all the issues I previously had, and improved the experience even more.

The lit up numbers are easy to press in, you wait for the sound that the box has unlocked, and you pull it open. You can set the amount of time that the box can stay open before it locks itself again.

There is an activation code unique to the lock box on the top corner of the flimsy instruction paper, and I would advise any new owner to copy that number and keep it safe, in case you lose the paper.

Once you have lost it, no one will be able to retrieve it for you.

There is also a primary code, a back up master code, and up to 5 secondary codes.

All these numbers will unlock your box.

You have to have downloaded the program to your phone, and have the phone and the box in each other’s vicinity to set these numbers initially to work with each other via bluetooth.

Once fixed in situ, you can either unlock the box by bluetooth if you’ve got the program downloaded and are very near the box, or if someone gave you any of the above numbers, you just key them in.

But where this product really excels, you can create a temporary code remotely, as long as you’re connected to the internet, so you can theoretically be in a different country, and create an access code, that you can email or text.

The temporary code will be created by the app randomly, and it is not necessary to be near the box.

This temporary code will work only for between 4 and 8 hours, you get to choose a start time.

This will work if you are sure that your guest will have access to their phone when they arrive.

It is also very handy if you want to allow tradesmen to come in in your absence.

We have found this to be the best way for moving forward, feeling secure that we have our own access codes, our guests don’t need to download the software which is complicated to use for some, and no temporary code will repeat itself.

It is of course a good idea to send another temporary code to the guest on the day they’re leaving, if you wish them to replace the key in the lockbox, if no other arrangements have been made for leaving the key.

Since we've installed these boxes 6 weeks ago, they have been a game changer. Go get it!

The Key Safe 5441 is a superbly designed and engineered product. It is solid and sturdy and of a much better construction than other similar products. The app that it uses is cleverly designed and has the ability to issue temporary access codes which can be easily revoked after use. We had ours professionally fitted by a joiner who commented that he thought it was the best key safe he had ever seen and fitted. Although the full functionality of the app takes a bit of getting used to, it can still be used as a simple safe without using the app on your phone. Highly recommended.

Excellent. Overcame the problem of being unable to see key pad at night and so far has been reliable. Find app a little difficult but this may be age related. A good buy even if a little expensive.

Excellent product very easy to set up and use. Changing the codes is simple which we do on a regular basis. Guests find it very easy to use.

This is the perfect key safe for renting out our caravan. I can log into the masterlock app which is linked to my safe only, and get a temporary code that will only last 8 hours before it changes, and then email or text that code to the customer to retrieve the keys upon arrival. I can then send another temporary code for when they are due to depart.

Using temporary codes for this purpose is great because I don't have to worry about customers helping themselves to my caravan without paying when it is unoccupied.

Being able to connect to the safe via Bluetooth is a good feature, you can set a number of permanent codes and are able to see when the safe as been accessed or attempted access and which code was used.

In my opinion this is a great safe.