Locking System: Review & E

Welcome to our big locking system test 2019, where we present you all locking systems that we have tested in detail. We have put together detailed background information for you and also added a summary of customer reviews on the net.

In this way we would like to make your purchase decision easier and help you to find the best locking system for you.

You can also find answers to frequently asked questions in our guide. If available, we also offer you interesting test videos. Furthermore, you will also find some important information on this page that you should pay attention to if you want to buy a locking system.

The most important facts in brief

  • Locking systems guarantee protection of your property and should therefore be chosen carefully.
  • There are different types of locking systems, which vary according to requirements and type of application.
  • In addition to the locking system, the door characteristics should also be carefully selected.

Locking system test: editorial favourites

  • The best keyed alike locking system
  • The best keyed alike locking system with 5 keys
  • The best locking system in a set of 4

The best keyed alike locking system

1st place in our ranking is occupied by the classic among the keyed alike locking systems. The ABUS profile cylinder.

Due to several cylinders it allows multiple use with only one key. Thus, front doors, apartment doors and garages can be operated with only one key. The cylinder is standardised according to DIN.

The model is very popular with its buyers – they especially appreciate the high quality at low cost.

The best keyed alike locking system with 5 keys

The ABUS EP20NP takes second place in our ranking. Here you get a set of up to four cylinders and five keys. It consists of six anti-picking housing pins and can therefore be classified as very secure. It is also certified according to DIN.

Buyers praise above all the simple assembly and the good price-performance ratio.

The best locking system in a set of 4

The third place in our ranking is occupied by the Westfalia locking cylinder set. Here you get a four-part cylinder set with 12 security keys.

The cylinder has special safety cut-outs and anti-drilling protection. Buyers praise the high security features and the safe feeling after installation.

Advisor: Questions you should deal with before buying a locking system

What is a locking system?

A master key system is a locking system consisting of several, individual locking cylinders. The individual locking cylinders are functionally related, i.e. they are used in one system.

Mechanical locking systems are used daily in apartment buildings. The residents use a key to lock the front door of the house, the apartment door and secondary locks such as cellar doors and the like.

But what is not possible – to get into the neighbour’s flat with the key. This is very practical, every resident has access to common areas, but not to the private rooms

Locking systems can be flexibly planned and used and can be configured for almost any situation.

When is a locking system suitable?

A locking system is mainly suitable for apartment buildings or commercially used buildings. Basically, a master key system makes sense if there are communal and private areas and the users should have as few keys as possible.
If you want to protect yourself as much as possible against burglary, you should make sure that your windows are also well secured. To ensure maximum security, you can install a window lock or a glass breakage detector.

How does a locking system work?

The locking system consists of several individual cylinders that are functionally related. A locking plan is usually created for the locking system, which documents the assignment of keys and locks. Furthermore, the design of the locks is defined.

What does a locking system cost?

There is a wide price range between the different locking systems. Depending on the quality and size, the cost varies. The range can be from about 30 to 250 euros.
Cheap crossbars start from as little as 30 euros, although it should of course be noted that branded crossbars are more expensive than “no name” products. Other factors that influence the price are the type of cylinder and materials.
In principle, however, the price also depends on the size of the locking system.
In general, attention should be paid to a balanced price/performance ratio and the cylinder quality should be adapted to the security requirements.

Where can I buy a locking system?

Locking systems are available in specialist shops and department stores as well as in many online shops. It is also possible to order locking systems directly from your local locksmith.
According to our research, most locking systems are sold through these online shops:


All locking systems that we present to you on our site have a link to at least one of these shops. If you have found a suitable latch that you like, you can strike right away.

What alternatives are there to a locking system?

There are no alternatives that offer the same functionality as the locking system.
Of course it is possible not to provide apartment buildings with a locking system. However, chaos quickly arises, as each resident needs extra keys for each door, i.e. front door, basement doors, apartment entrance door, doors to the garbage cans and so on. A master key system simplifies this chaos, so that each flatmate only needs one key.
The only advantage of not using a locking system is that if a key is lost, you don’t have to change the entire locking system, as this key only works for one lock.

Decision: What types of locking systems are there and which one is right for you?

If you want to buy a locking system, there are four alternatives between which you can choose:

  • Equal-key system
  • Central lock system
  • Master key system
  • General master key system

Depending on the area of application, you can choose one of these three categories. With the following sections we would like to make your decision easier.

What are the characteristics of a keyed alike system and what are its advantages and disadvantages?

All of us probably know about keyed systems from cars. Here you can unlock or lock all doors, the trunk, the gas cap, the ignition lock with a single key. So it is possible to use several locks with one key.

This is suitable for single-family homes, for example, if you only want to use one key for your front door, mailbox and the like to avoid key chaos.


Suitable for simple locking systems


Not suitable for shared use

What distinguishes a central lock system and what are its advantages and disadvantages?

The central lock system is the classic in apartment buildings. Here there are several central locks and individual locks. The central locks can be opened and closed by all keys, the individual locks only by the respective authorised key.

In apartment buildings, the main entrance and, for example, the basement access is equipped with central cylinders and can be used by any tenant. The individual closures, i.e. apartments, can only be opened by the respective tenant.


Ideal for complex locking systems
Separate use possible


Key losses are very costly

What distinguishes a master key system and what are its advantages and disadvantages?

These plants are structured hierarchically. In this system, there is one or more higher-level master keys that can operate each lock in the system. The individual keys can only open subordinate cylinders.

An example of the system is universities, each classroom can be opened individually, but the main entrance cannot. However, the higher-level keys are suitable for each lock in the system.


Ideal for public buildings
Suitable for complex locking systems


Configuration is costly and complex

What distinguishes a general master key system and what are its advantages and disadvantages?

The general master key system is probably the most complicated system. This system has further hierarchical levels, which are also called groups. Each group has a group key that can operate all doors in the group.

Groups can be combined into main groups, which is why the structure can be extended as required. Of course there is also a general key. This complex but useful system is especially useful in large offices where several floors and departments have to be combined.


Ideal for separation of large buildings
Suitable for complex locking systems


Configuration is costly and complex

Purchase criteria: You can use these factors to compare and evaluate locking systems

In the following we will show you on the basis of which aspects you can decide between the multitude of possible locking systems.

The criteria that you can use to compare the systems include

  • Quality and brand
  • Kunst
  • Security card
  • DIN class
  • VdS class

In the following paragraphs we will explain what is important for each of the criteria.

Quality and brand

The important thing is that you think before you buy

However, the chosen brand and model must really meet your requirements for safety and quality. You should research and compare thoroughly.


As mentioned above, there are different types of locking systems. Before buying, you should check which system is the ideal one for you to meet your requirements.

Security card

Does your locking system have a security card? Only with a security card do you have protection against key duplication. If the lock does not have a security card, keys can be freely copied on the market.

DIN class

The DIN class is the safety classification of the German Institute for Standardization. High-quality locking cylinders comply with the standard and thus fulfil the requirements of certain criteria, such as unlocking security, unlocking security, scanning security, drilling protection, core extraction protection and key security.

VdS class

If you decide on a locking system, you should also inform yourself about the VdS protection classes.

Trivia: Worth knowing facts about the locking system

What happens if I have lost a key to the locking system?

According to the German Key Insurance, a key is lost in Germany every 35 minutes. This is not only very annoying, but can also be very expensive, for example if no insurance has been taken out, but the tenant is liable for the damage.

In the case of a locking system, you have to reckon with several thousand euros if it has to be changed.

However, most private liability insurance policies include key insurance. It is important to read the small print carefully to make sure that not only the individual lock for the apartment is insured, but also the entire apartment complex.

In all cases they should inform the landlord. Making a duplicate key without permission is not legal.