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Digital Master Key System

Total Access Control, Made Simple

Traditional master key systems have been the backbone of building security for decades. But one lost or stolen mechanical master key can cost thousands, create security gaps, and cause major operational disruption. 

A Digital Master Key System from SimonsVoss replaces those outdated metal keys with secure, programmable credentials, giving you instant control, complete visibility, and the flexibility to adapt to changing needs. 

Mechanical Master Key Risks & Security Challenges 

A conventional master key unlocks every door in your building. That means: 

  • High security risk if lost or stolen
  • No quick way to revoke access, you must replace locks and keys
  • No audit trail so you can’t see who entered or when
  • Expensive and disruptive maintenance, especially in large facilities

In industries like healthcare, education, manufacturing, and corporate offices, a lost master key is a worst-case scenario. 

What Is a Digital Master Key System? 

A Digital Master Key System works just like a traditional master key hierarchy but without the vulnerabilities of a physical key. 

Instead of a single metal key, you use secure, programmable credentials such as: 

Transponders 

SmartCards 

SmartTags 

SlimTags 

Smartphone access via the AX2Go app 

These digital credentials can be assigned, updated, or revoked instantly using your central access control software. 

Master Key Hierarchy in a Digital System

In a mechanical system, a general master key sits at the top, with group and individual keys below. In the SimonsVoss digital version: 

  • General Master Credential – Unlocks every area in your facility
  • Group Credentials – Provide access to specific zones (e.g., production, administration)
  • Individual Credentials – Allow entry to designated doors only

Lose a credential? Simply deactivate it, no cylinder replacements, no downtime, no security gap. 

Keyless Master Key System Benefits 

Instant Access Revocation

Block lost or stolen credentials in seconds  

Full Audit Trails

See exactly who accessed which door, and when 

Flexible Permissions

Assign time-limited or zone-specific access rights

Cost-Efficient

Avoid the cost of replacing entire locking systems 

Scalable

From single buildings to multi-site enterprises 

Wireless Installation

Battery-powered, no disruptive cabling required 

Digital Identification Media Options 

Media Type 

Best For 

Highlights 

Transponder Everyday use Long battery life, robust design, up to 40 cm range 
SmartCard Large organisations Cost-effective, easy to replace, perfect for visitors 
SmartTag Compact environments Attaches to keyrings, uniforms, discreet form 
SlimTag Minimalist users Ultra-thin, lightweight, ideal for low-profile credentials 
AX PIN Code Keypad Temporary or shared access No media required, change codes remotely 
Electronic Keypad Lock Cabinets & lockers Integrated access control without extra devices 
Smartphone – AX2Go BYOD environments Contactless unlocking via Bluetooth/NFC 
Smartphone Access Control Remote admin teams Push updates over-the-air, works offline via Bluetooth 

Smart Door Hardware for Digital Master Key Systems 

Digital Locking Cylinder

  • Fits almost any door—internal or external
  • Weather-resistant and vandal-proof
  • Compatible with multipoint locks and fire doors 

Digital Smart Handle 

  • Integrated handle and locking function
  • Ideal for high-traffic interior doors
  • Sleek, hygienic, stainless steel design 

Digital Padlocks & Cabinet Locks 

  • Extend security to lockers, server racks, and storage units
  • Works with the same credentials as your main door system 

Access Control Software for Digital Master Key Systems 

SimonsVoss digital master key systems work seamlessly with: 

AX Manager – Control every user, door, and credential from one central platform 

Smart Handle – Upgrade doors with intelligent, battery-powered fittings 

MobileKey – Manage up to 20 doors and 100 users directly from your smartphone or browser

Advanced Security in Electronic Master Key Systems

  • AES 128-bit encryption for secure communication
  • Tamper detection in locking components
  • Anti-cloning technology for credentials
  • Offline functionality, doors operate even if the network is down 

Industry Applications for Digital Master Key Systems 

  • Education – Manage staff, student, contractor, and visitor access 
  • Healthcare – Secure wards, pharmacies, and staff areas with shift-based updates 
  • Corporate Offices – Reduce key management and integrate with visitor systems 
  • Manufacturing & Logistics – Control hazardous zones and track movements 
  • Hospitality & Residential – Provide guest access that expires automatically 

 

Upgrading from Mechanical to a Digital Locking System 

  1. Audit your current master key hierarchy 
  2. Select digital components compatible with your doors
  3. Plan phased installation to avoid downtime
  4. Train administrators in AX Manager
  5. Activate digital credentials and retire old keys 

FAQ for Digital Master Key Systems 

What happens if I lose my digital master key?

Deactivate it in the system instantly, security is restored in seconds. 

Can I still have different access levels?

 Yes, digital systems can mirror traditional hierarchies with master, group, and individual credentials.

Do I need to rewire my building? 

 No, SimonsVoss systems are battery-powered and cable-free

How long do batteries last? 

Up to 80,000 operations (around 5 years) on average.

Is it secure against hacking? 

Yes, our systems use encrypted communication and anti-cloning measures.

Ready to Upgrade Your Master Key System? 

Take control of your security with a Digital Master Key System from SimonsVoss. 

Contact your nearest installer for a demo.