
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A Digital Master Key System from SimonsVoss replaces those outdated metal keys with secure, programmable credentials, giving you instant control, complete visibility, and the flexibility to adapt to changing needs.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:
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
- Audit your current master key hierarchy
- Select digital components compatible with your doors
- Plan phased installation to avoid downtime
- Train administrators in AX Manager
- Activate digital credentials and retire old keys
FAQ for Digital Master Key Systems
Deactivate it in the system instantly, security is restored in seconds.
Yes, digital systems can mirror traditional hierarchies with master, group, and individual credentials.
No, SimonsVoss systems are battery-powered and cable-free
Up to 80,000 operations (around 5 years) on average.
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.