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The 520/540 M Code – a mechanical key deposit box with a numerical code
If you’re looking for a simple key safe with a numerical code, our masunt 520/540 M Code key deposit box is the perfect choice.
The mechanical key deposit box made of stainless steel offers secure, no-frills key storage. It has a four-digit dial that can be used to set an individual code.
The code is permanently valid and can be changed at any time.
What makes this key safe with a numerical code so special is the fact that the code is automatically blurred after the key safe is opened. This protects the code from prying eyes and means that users don’t need to scramble the code after entering it.
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Average rating of 4.79 out of 5 stars
The masunt key deposit box is used to store and deposit property keys or other access media.The housing’s walls are 3 mm thick, and are optionally available in stainless steel quality AISI 304 or AISI 316. The Key depot 520 M Code at a glance: High-quality lock design with four-digit combination Automatic code blurring during every opening and closing operation (Opening the safe will automatically set back the code to 0000. Hence there is no more need to readjust the code combination as you are used from standard luggage or bike locks. The programmed opening code within the lock is not changed through this procedure until you do so manually.) Code identification and emergency opening by means of a service key Code can be modified without auxiliary means Constructed for use in the protected outdoor area A seal in the key deposit box’s frame ensures faultless door locking.The key deposit box is attached using two slots on the rear (the fastening material for standard masonry is included in the scope of supply).Both surface and flush-mounted installation are possible.
Prices incl. VAT plus shipping costs
Kontakt / contact:
Resatur GmbH | masunt | Poststraße 33 | 20354 Hamburg I www.masunt.com | [email protected] | +49 (0)40 716 629 905

Average rating of 5 out of 5 stars
The masunt key deposit box is used to store and deposit property keys or other access media.The housing’s walls are 3 mm thick, and are optionally available in stainless steel quality AISI 304 or AISI 316. The Key depot 540 M Code at a glance: High-quality lock design with four-digit combination Automatic code blurring during every opening and closing operation (Opening the safe will automatically set back the code to 0000. Hence there is no more need to readjust the code combination as you are used from standard luggage or bike locks. The programmed opening code within the lock is not changed through this procedure until you do so manually.) Code identification and emergency opening by means of a service key Code can be modified without auxiliary means Constructed for use in the protected outdoor area A seal in the key deposit box’s frame ensures faultless door locking.The key deposit box is attached using two slots on the rear (the fastening material for standard masonry is included in the scope of supply).Both surface and flush-mounted installation are possible.
Prices incl. VAT plus shipping costs
Kontakt / contact:
Resatur GmbH | masunt | Poststraße 33 | 20354 Hamburg I www.masunt.com | [email protected] | +49 (0)40 716 629 905

Discover the new masunt KeySafe 440 M Code, an affordable and efficient solution for securely storing and depositing your keys and access credentials. Based on the proven design of the 540 M Code, the 440 M Code model offers all the familiar features in a more compact and cost-effective format. The masunt KeySafe 440 M Code is characterized by its solid construction and reliable combination lock, combining security with user-friendliness. Ideal for vacation rentals, private households, and businesses that need a secure yet accessible place for keys. The Key depot 440 M Code at a glance: Robust combination lock: Easy to use, it provides high protection for your keys. Innovative code reset system: If you forget your code, the code can be reset with a key. Compact and durable construction: With a wall thickness of 2mm and made of high-quality AISI 316 stainless steel, it ensures longevity and resilience. Space-saving dimensions: With external dimensions of 120 (W) x 60 (H) x 75 (D) mm, it fits almost anywhere. Automatic code scrambling: After opening, the combination automatically resets, eliminating the need to manually adjust the code. Easy installation: Screws and dowels for standard masonry are included.
Prices incl. VAT plus shipping costs
Kontakt / contact:
Resatur GmbH | masunt | Poststraße 33 | 20354 Hamburg I www.masunt.com | [email protected] | +49 (0)40 716 629 905

Discover the new masunt KeySafe 420 M Code, an affordable and efficient solution for securely storing and depositing your keys and access credentials. Based on the proven design of the 520 M Code, the 420 M Code model offers all the familiar features in a more compact and cost-effective format. The masunt KeySafe 420 M Code is characterized by its solid construction and reliable combination lock, combining security with user-friendliness. Ideal for vacation rentals, private households, and businesses that need a secure yet accessible place for keys. The Key depot 420 M Code at a glance: Robust combination lock: Easy to use, it provides high protection for your keys. Innovative code reset system: If you forget your code, the code can be reset with a key. Compact and durable construction: With a wall thickness of 2mm and made of high-quality AISI 304 stainless steel, it ensures longevity and resilience. Space-saving dimensions: With external dimensions of 120 (W) x 60 (H) x 75 (D) mm, it fits almost anywhere. Automatic code scrambling: After opening, the combination automatically resets, eliminating the need to manually adjust the code. Easy installation: Screws and dowels for standard masonry are included.
Prices incl. VAT plus shipping costs
Kontakt / contact:
Resatur GmbH | masunt | Poststraße 33 | 20354 Hamburg I www.masunt.com | [email protected] | +49 (0)40 716 629 905

Particularly when our stainless steel products are installed outdoors, flash rust can form over time (especially near the coast), negatively impacting the appearance of the stainless steel finish. The high-quality stainless steel finish is preserved in the long term too thanks to the cleaning and care set developed specifically for our products. The stainless steel care oil prevents small particles that later go on to form flash rust from sticking to our solutions. Depending on the weather conditions, we recommend using the care oil and a microfibre polishing cloth to treat your product one to three times a year. If flash rust has already formed on your product, removing it to restore your product to its sparkling splendour is child’s play with the cleaning and polishing paste and the supplied special sponge. The four-part set is the ideal addition for all our stainless steel products: Stainless steel care oil Microfibre polishing cloth Cleaning and polishing paste for metals Sponge
Prices incl. VAT plus shipping costs
Kontakt / contact:
Resatur GmbH | masunt | Poststraße 33 | 20354 Hamburg I www.masunt.com | [email protected] | +49 (0)40 716 629 905

The masunt installation service consists of an all-inclusive package from planning and installation to instruction in using the hardware and software for our stainless steel products.Our technicians professionally install your purchased masunt product – wherever you are. All the advantages of the installation and setup service at a glance: Installation throughout Germany (throughout Europe too on request) On schedule and reliable for your use case Professional planning and installation (surface-mounted and flush-mounted possible) Software setup so the product can be used directly Extensive technical briefing following installation masunt products can be mounted on your wall or, alternatively, we can supply you with a standalone wall so you can attach the masunt products securely. Our technician will be delighted to help you on site with any technical questions you might have regarding using the purchased product. To install your masunt product, you need a load-bearing surface and any required cables (e.g. power or LAN connection). We will be more than happy to advise you on your individual installation situation and provide you with a free, non-binding quotation for your use case. Call us on +49 (0)40 716 629 905 Send us an email on info(at)masunt.com info(at)masunt.com Let us call you back with our callback service
Prices incl. VAT plus shipping costs
Kontakt / contact:
Resatur GmbH | masunt | Poststraße 33 | 20354 Hamburg I www.masunt.com | [email protected] | +49 (0)40 716 629 905

The wall structure is standalone. This has major advantages: No need to drill holes in the building façade. DNo need to go through a lengthy coordination process with the property manager / homeowners’ association. A potential alternative if the building’s outer walls do not allow safe installation. The wall structure has walls measuring 3 mm thick and can be equipped with any number of key deposit boxes. The compact deposit boxes, which each come with a mechanical combination lock made of solid AISI 304 stainless steel (3 mm), cannot be broken into and can withstand the elements Easy to use with a practical function: The four dials can be set precisely and automatically switch to ‘0000’ when the deposit box is opened, so unauthorised individuals cannot see what the access code is. With key for emergency opening: The enclosed key can be used to open the safe if the user has forgotten the valid combination. The code is automatically displayed again when the deposit box is opened. The locks naturally have different closures. High-quality appearance: An elegant design due to brushed stainless steel, integrated and continued through the wall structure. A real eye-catcher The anchoring depth is at least 500 mm. The necessary foundation size depends on the soil conditions. Please contact us directly if you’d like a larger number of key deposit boxes or the option of assembling them with other products (key safes / repositories) in a way that extends beyond the existing configuration.
Prices incl. VAT plus shipping costs
Kontakt / contact:
Resatur GmbH | masunt | Poststraße 33 | 20354 Hamburg I www.masunt.com | [email protected] | +49 (0)40 716 629 905

The wall structure is standalone. This has major advantages: No need to drill holes in the building façade. DNo need to go through a lengthy coordination process with the property manager / homeowners’ association. A potential alternative if the building’s outer walls do not allow safe installation. The wall structure has walls measuring 3 mm thick and can be equipped with any number of key deposit boxes. The compact deposit boxes, which each come with a mechanical combination lock made of solid AISI 316 stainless steel (3 mm), cannot be broken into and can withstand the elements Easy to use with a practical function: The four dials can be set precisely and automatically switch to ‘0000’ when the deposit box is opened, so unauthorised individuals cannot see what the access code is. With key for emergency opening: The enclosed key can be used to open the safe if the user has forgotten the valid combination. The code is automatically displayed again when the deposit box is opened. The locks naturally have different closures. High-quality appearance: An elegant design due to brushed stainless steel, integrated and continued through the wall structure. A real eye-catcher The anchoring depth is at least 500 mm. The necessary foundation size depends on the soil conditions. Please contact us directly if you’d like a larger number of key deposit boxes or the option of assembling them with other products (key safes / repositories) in a way that extends beyond the existing configuration.
Prices incl. VAT plus shipping costs
Kontakt / contact:
Resatur GmbH | masunt | Poststraße 33 | 20354 Hamburg I www.masunt.com | [email protected] | +49 (0)40 716 629 905

Key management with masunt M code key depots
Manual key depots are a secure and efficient solution even in the digital age. The masunt M Code series offers a range of models that are suitable for different requirements.
Mechanical key depots: Security through simplicity
The masunt M Code series offers mechanical key depots that are characterised by their simple handling and robust construction. Without relying on digital technologies, these depots offer a reliable solution for those who prefer a direct and uncomplicated method of key management.
A mechanical key deposit box is the answer to the need for secure and accessible key storage without the need for electronic complexity. The mechanical key deposit box works manually and, thanks to its simple handling, offers a quick solution for the secure storage of keys. Equipped with a key deposit combination lock, it allows users to secure their keys by entering a personalised code. The intuitive key deposit number roller is easy to use and the set code can be changed at any time if required. The manual system of the key depot ensures reliable and permanent use, which is ideal for private, commercial or public facilities. The combination of security, simplicity and reliability makes the manual key deposit box an excellent choice for anyone looking for an uncomplicated key management solution.
Key deposit combination lock: simplicity meets efficiency
The masunt 520/540 M Code key deposit box provides users with a simple but effective system for key storage. This model comes with a 4-digit numbered cylinder that allows users to set a personalised code. This code is permanently valid, but can be changed at any time if required, allowing flexible use.
Discreet security: automatic code scrambling
A special feature of the masunt key deposit box with numerical code is the automatic code wiping after opening. This protects the code from prying eyes and ensures that the code does not have to be twisted after entry in order to delete the settings.
masunt key deposit combination lock 520 M Code & 540 M Code
The masunt key depot combination lock 520 M Code and 540 M Code: The masunt key depot M Code series represents the perfect entry into the number code-based product world of masunt.
With a compact design, 3 mm wall thickness on all sides and a high-quality combination lock, these depots offer a robust and secure solution for key storage. The 520 M Code is manufactured from high-quality V2A stainless steel, promising durability and stability, making this product a reliable choice for key management.
On the other hand, the masunt key depot combination lock 540 M code offers extra corrosion resistance, ideal for seawater and coastal regions. This depot is made from high-quality V4A stainless steel, which is known for its corrosion resistance, making it an excellent choice for demanding environments.
Both models offer a simple but effective method of securing and managing access to keys. The simple operation of the combination lock enables quick and uncomplicated key handover, which is particularly advantageous in business contexts. The masunt 520 M Code and 540 M Code key depots are not only functional but also elegant solutions that can be seamlessly integrated into any environment. They demonstrate masunt's expertise in the field of numerical code-based key management and offer users a reliable solution for their security needs.
masunt key deposit column: Flexible, secure and free-standing
The masunt V2A key depot pillar is an innovative solution for free-standing outdoor installation that enables customised key depots to be fitted. This free-standing design offers significant advantages as it eliminates the need to drill holes in the building façade, avoids the need for lengthy coordination with the property management/landlord and is a possible alternative if the external walls of the building do not permit secure installation.
The pillar construction made of robust V2A stainless steel with a wall thickness of 3 mm is designed to accommodate any number of key depots. These compact depots have a mechanical combination lock and are also made of solid V2A stainless steel (3 mm), which makes them both secure against break-ins and resistant to weather influences.
For additional corrosion resistance, especially in seawater and coastal regions, the masunt key deposit pillar is also available in a V4A steel version. This design not only offers a high level of security and resistance, but also a high degree of flexibility in the arrangement and number of key depots, enabling a customised solution for different requirements.
The masunt V2A and V4A key deposit pillar is a convincing solution that combines the management and security of your keys with the aesthetics and flexibility of a free-standing outdoor installation.
Easier key handover with masunt M codes
masunt's manual key depots are not only secure but also extremely user-friendly, making key handover much easier. Whether you run a small business, property management or simply need a secure storage facility for your keys, the masunt M Code series offers a range of solutions that can simplify your key management processes.
The masunt M Code series is an ideal solution for those looking for a simple but robust method of key management. Invest in a masunt key depository and experience improved, stress-free key management.
