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

Smart Design and Durable Construction
The S535 features a 5-inch IPS touchscreen and a robust aluminium front panel. As a result, it offers a clean and modern appearance alongside long-term durability. Its intuitive interface improves user interaction for both visitors and residents, ensuring a seamless entry experience at all times.
Flexible Access Credentials
Security requirements vary across different sites. Therefore, the S535 supports multiple authentication methods to suit any deployment:
- 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 and Audio Communication
Clear communication is essential at any entry point. The S535 delivers a 2MP wide-angle camera with a 116° horizontal field of view, HDR imaging for challenging lighting conditions and automatic night mode for low-light visibility. In addition, full-duplex two-way audio with echo cancellation ensures clear and reliable interaction between visitors and staff at all times.
Modular Expansion for Future Needs
One of the strongest features of the S535 is its modular architecture. It allows easy upgrades without replacing the entire unit. Moreover, optional modules include a 4G/LTE connectivity module for remote or standalone sites, a fingerprint reader for biometric access and an induction loop for hearing assistance compliance. As a result, the system can evolve alongside changing site requirements without unnecessary cost.

Built for Harsh Environments
The S535 is engineered for demanding conditions. It carries an IP66 rating for dust and water resistance and IK08 impact protection for vandal resistance. It also operates across a wide temperature range from -40°C to +55°C. Therefore, whether installed outdoors, in industrial sites or high-traffic entrances, it remains reliable throughout.
Integration and System Compatibility
The S535 supports SIP protocol for VoIP integration and ONVIF compliance for seamless connection with video systems and NVRs. It also integrates with third-party platforms, making it easy to connect with existing IP PBX systems, security platforms and video management solutions.
Key Features
- 5-inch IPS touchscreen with aluminium front panel
- Facial recognition, RFID, PIN, Bluetooth and QR code access
- 2MP wide-angle camera with HDR and night mode
- Full-duplex two-way audio with echo cancellation
- Modular expansion for 4G/LTE, fingerprint and induction loop
- IP66 and IK08 rated for outdoor and harsh environments
- SIP and ONVIF compatible
- Operating range -40°C to +55°C











