Akuvox S538 8-Inch Android Door Phone

The Akuvox S538 Door Phone is an advanced 8-inch Android smart intercom designed for residential and commercial entrances requiring high-quality video, intelligent access control and a modern touchscreen interface. Its aluminium front panel, 8-inch IPS display, 5MP Starlight main camera and multiple keyless entry options combine security and ease of use in a slim entrance terminal.

Running Android 12 on an 8-core processor, the S538 provides a responsive interface while supporting face recognition, RFID credentials, PIN codes, QR codes, Bluetooth and mobile app-based entry.

8-Inch Android Touchscreen

The S538 features an 8-inch IPS LCD touchscreen with a resolution of 800 × 1280.

Android 12 provides the underlying operating platform, supported by an 8-core CPU for responsive touchscreen operation and everyday intercom functions.

Triple-Camera Vision System

The S538 incorporates a multi-camera system designed to support surveillance, face recognition and QR-code access.

The system includes:

• 5MP main camera
• Starlight imaging
• HDR
• HLC
• Dedicated liveness-detection camera
• Dedicated QR-code recognition camera

The liveness-detection camera is designed to distinguish real people from photographs or videos, while the third camera provides QR-code recognition for compatible access applications.

5MP Video with 2K Resolution

The main camera uses a 1/2.65-inch CMOS sensor and supports video resolution up to 2880 × 1620.

Video capabilities include:

• Up to 2K resolution
• Maximum 25fps at 2K
• H.264 video codec
• HDR imaging
• 120° horizontal viewing angle
• 64° vertical viewing angle
• Compatibility with third-party video components such as NVRs

Akuvox S538 Door Phone Access Control

A wide range of entry methods allows the S538 to accommodate residents, staff, visitors and temporary users.

Supported access methods include:

• Face recognition
• EM cards
• MIFARE cards
• PIN codes
• QR codes
• Bluetooth Low Energy
• Mobile app-based access

The integrated RF reader supports 13.56MHz and 125kHz credentials, with NFC support also listed.

Supported card types include:

• EM
• MIFARE
• DESFire EV1
• DESFire EV2
• DESFire EV3
• FeliCa

Large Credential Capacity

The S538 supports large-scale deployments with capacity for:

• 50,000 users
• 50,000 face templates
• 250,000 cards
• 50,000 PIN codes

This makes the unit suitable for installations requiring a substantial database of users and credentials.

Radar and Image Motion Detection

Radar and image-based motion detection provide additional entrance monitoring capabilities.

Detection zones and distances can be configured, allowing activity around the entrance to trigger alerts when required. A dedicated motion sensor and light sensor are also supported.

Continuous Entry Monitoring

The camera supports continuous operation for real-time entrance surveillance.

This allows the S538 to function as both an intercom and an always-on monitoring device at the entry point.

SIP Audio Communication

The unit supports:

• SIP v1 – RFC2543
• SIP v2 – RFC3261
• G.711a / G.711μ narrowband audio
• G.722 wideband audio
• In-band DTMF
• RFC2833 out-of-band DTMF
• SIP Info
• Echo cancellation
• Voice Activity Detection
• Comfort Noise Generator

The hardware includes two microphones and one speaker for intercom communication.

Door and Access-Control Interfaces

Three relay outputs and three inputs provide integration options for compatible doors, gates and access-control equipment.

Individual relay control can also be performed through DTMF tones.

Additional interfaces include:

• Selectable Wiegand input/output
• RS-485
• Line output
• Power output
• Tamper alarm
• Reset control

Bluetooth 5.0

Built-in Bluetooth 5.0 supports compatible BLE-based access methods.

Bluetooth provides another contactless credential option alongside face recognition, cards, QR codes and PIN entry. Akuvox S538 Datasheet V1.0

Ethernet and PoE

Network connectivity is provided through a 10/100Mbps adaptive RJ45 Ethernet port.

The unit supports IEEE 802.3at Power over Ethernet, while a 24V DC, 2A input is also provided as an alternative power source.

A separate power output provides up to 12V DC / 0.5A.

IP66 and IK08 Protection

The S538 carries:

• IP66 protection
• IK08 impact resistance

Its operating temperature range is -20°C to +55°C, with operating humidity from 10% to 90% RH.

Flexible Installation

The unit supports both:

• Flush-mounted installation
• Wall-mounted installation

Device Management

Management and maintenance capabilities include:

• Auto-provisioning
• Web management portal
• Configuration backup and restore
• Firmware upgrades
• System logs
• Door access logs

Supported networking protocols include IPv4, HTTP, HTTPS, FTP, DNS, NTP, RTSP, RTP, TCP, UDP, ICMP, DHCP and ARP.

Akuvox S538 Door Phone Features

• Android 12 operating system
• 8-core CPU
• 8-inch IPS LCD touchscreen
• 800 × 1280 display resolution
• Aluminium front panel
• 5MP Starlight main camera
• Triple-camera vision system
• Dedicated liveness-detection camera
• Dedicated QR recognition camera
• HDR and HLC imaging
• Up to 2880 × 1620 video resolution
• Up to 25fps at 2K
• H.264 video compression
• 120° horizontal viewing angle
• 64° vertical viewing angle
• Face recognition
• EM and MIFARE card access
• DESFire EV1/EV2/EV3 support
• FeliCa support
• PIN access
• QR-code access
• BLE access
• Mobile app-based access
• Bluetooth 5.0
• 50,000 users
• 50,000 face templates
• 250,000 cards
• 50,000 PIN codes
• Radar and image motion detection
• Light sensor
• Motion sensor
• Continuous camera monitoring
• SIP v1 and SIP v2
• G.711a / G.711μ audio
• G.722 wideband audio
• Echo cancellation
• Two microphones
• One speaker
• Three relay outputs
• Three inputs
• Wiegand input/output
• RS-485
• Line output
• Tamper alarm
• 10/100Mbps Ethernet
• IEEE 802.3at PoE
• 24V DC power input
• 12V DC / 0.5A power output
• IP66 protection
• IK08 impact resistance
• -20°C to +55°C operating range
• Flush or wall mounting
• Auto-provisioning
• Web management
• Configuration backup and restore
• Firmware upgrade
• System and door access logs