Description
The Akuvox S535 Door Phone delivers a modern approach to access control. It combines modular design, premium materials, and multi-credential authentication in a single, scalable platform. As a result, it suits both residential and commercial deployments where flexibility and future expansion matter.

Smart Design Meets Practical Functionality
The S535 is built with a 5-inch IPS touchscreen and a robust aluminium front panel. This creates a clean, modern look while ensuring long-term durability. Its intuitive interface improves user interaction. Visitors can easily navigate access options, while residents benefit from a seamless entry experience.
Flexible Access Credentials for Every Scenario
Security requirements vary. Therefore, the S535 supports multiple authentication methods:
- Facial recognition for contactless access
- RFID card for traditional credentials
- PIN code for secure entry
- Bluetooth (BLE) for mobile-based access
- QR code scanning for temporary or visitor access
This flexibility makes it ideal for apartments, offices, schools, and high-traffic facilities.
High-Quality Video & Audio Communication
Clear communication is essential at entry points. The S535 delivers:
- 2MP wide-angle camera (116° horizontal view)
- HDR imaging for challenging lighting conditions
- Automatic night mode for low-light visibility
- Full-duplex two-way audio with echo cancellation
As a result, both visitors and staff experience clear, reliable interaction at all times.
Modular Expansion for Future Needs
One of the key strengths of the S535 is its modular architecture. It allows easy upgrades without replacing the entire unit.
Optional modules include:
- 4G/LTE connectivity for remote or standalone sites
- Fingerprint reader for biometric access
- Induction loop for hearing assistance compliance
This ensures the system can evolve alongside changing site requirements.

Built for Harsh Environments
The S535 is engineered for demanding conditions:
- IP66-rated for dust and water resistance
- IK08 impact protection for vandal resistance
- Operating range: -40°C to +55°C
Whether installed outdoors, in industrial sites, or high-traffic entrances, it remains reliable.
Integration & System Compatibility
Modern installations require interoperability. The S535 supports:
- SIP protocol for VoIP integration
- ONVIF compliance for video systems and NVRs
- Seamless connection with third-party platforms
This makes it easy to integrate with existing IP PBX systems, security platforms, and video management solutions.





