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Akuvox R20A Black Single-Button SIP Video Door Phone with Card Reader — AK-R20ABLK-ONWALL
$393.50 inc GST
Akuvox R20A in black is a palm-size, single-button SIP video door phone — about the size of a smartphone — for houses, townhouses and single-tenant offices. 2 MP camera, card and NFC entry, two lock relays and IP65 aluminium. Surface-mount model, PoE powered.
- ✓One call button with blue backlight
- ✓2 MP camera, 110° (H) / 58° (V), 1080p at 30 fps, IR night lighting
- ✓13.56 MHz / 125 kHz reader and Android NFC — 20,000 cards, 4,000 users
- ✓2 relays, 2 inputs, Wiegand, RS485 · PoE 802.3af or 12 V DC · IP65 · 145 × 85 × 24 mm
Akuvox · R20A · Black single-button door station
Smartphone-size door phone.
One button, full video entry.
The AK-R20ABLK-ONWALL is Akuvox’s R20A in black aluminium alloy: one backlit call button, a 2 MP camera and a dual-frequency card reader in a 145 × 85 mm plate. It fits door frames and gate posts where most door stations won’t.
This SKU is the surface-mount door station only.
You receive the black R20A surface-mount door phone. Indoor monitor, in-wall kit, rain hood, PoE switch and lock hardware are sold separately.
In the box
- Akuvox R20A door phone (black)
- Wall-mounting bracket, screws, wall anchors and Allen wrench
- Wiring cover, sealing plate, rubber cable plugs and safety rope
- 2 diodes for lock coils
What you also need(sold separately)
- Compatible Akuvox indoor monitor, SmartPlus app or SIP endpoint
- PoE 802.3af switch or injector, or a 12 V DC 1 A adapter
- Electric lock / maglock and lock PSU if the door is released
- Black R20A / R25A in-wall kit for flush mounting
Press once. See them. Let them in.
Visitors press the single call button and you answer on an Akuvox indoor monitor, the SmartPlus app or a SIP phone. Family and staff let themselves in with a card or an Android phone.
Compact
Fits a door frame.
145 × 85 × 24 mm, black aluminium alloy, IP65 rated, −30 °C to +60 °C, with a tamper alarm.
Surface-mounts as supplied. Use the black R20A / R25A in-wall kit for flush, and a rain hood on exposed doors.
Video and audio
Clear picture, clear speech.
2 MP 1/2.8″ camera, 110° (H) / 58° (V), H.264 up to 1920 × 1080 at 30 fps, with IR LEDs and a light sensor for night calls.
Two-way audio with echo cancellation and noise suppression, G.722 wideband. ONVIF and RTSP let you record the door on your NVR.
Access
Card, NFC or app.
The 13.56 MHz and 125 kHz reader takes EM, MIFARE and DESFire EV1 / EV2 / EV3 credentials, plus NFC from Android phones. Up to 20,000 cards and 4,000 users.
Two relays drive two doors or a door and a gate. Two inputs, Wiegand in/out and RS485 connect exit buttons, door sensors and controllers.
How it works
From button press to open door.
01
Mount
Surface-mount as supplied, or flush with the R20A / R25A in-wall kit. Add a rain hood where exposed.
02
PoE and SIP
Run 802.3af PoE to the RJ45 and register to an Akuvox indoor monitor, SmartPlus or your SIP PBX.
03
Enrol cards
Add residents and their cards in the web portal: up to 20,000 cards.
04
Test the door
Press the button, check the picture day and night, and confirm each relay releases the right lock.
At a glance
Key specs — AK-R20ABLK-ONWALL
Show all specifications
- Finish
- Black aluminium alloy
- Call button
- 1, blue backlight
- Camera
- 2 MP, 110° (H) / 58° (V), 1080p at 30 fps
- Night
- IR LEDs, light sensor, 0.1 lux minimum
- Entry
- 13.56 MHz / 125 kHz cards, NFC (Android), DTMF, SmartPlus app
- Capacity
- 20,000 cards · 4,000 users
- I/O
- 2 relays, 2 inputs, Wiegand in/out, RS485, tamper
- Power
- IEEE 802.3af PoE or 12 V DC
- Protection
- IP65, −30 °C to +60 °C
- Size
- 145 × 85 × 24 mm (H × W × D)
- Warranty
- Australian warranty
- Brand
- Akuvox
- Reference
- AK-R20ABLK-ONWALL
Physical and power
- Front panel
- Aluminium alloy
- Call button
- 1, with blue backlight
- Camera
- 2 MP with automatic lighting
- Infrared LEDs
- Yes
- Sensors
- Light sensor, motion sensor, tamper alarm
- Speaker / microphone
- 1 / 1
- Ethernet
- RJ45, 10/100 Mbps adaptive
- Power
- IEEE 802.3af PoE
- Ingress protection
- IP65
- Installation
- Surface (wall) or flush mounted
- Dimensions (H × W × D)
- 145 × 85 × 24 mm
- Working temperature
- −30 °C to +60 °C
- Storage temperature
- −40 °C to +70 °C
- Working humidity
- 10–90%
- Operating system
- Linux
Interfaces
- Relay outputs
- 2
- Inputs
- 2
- Wiegand
- 1 channel, input or output (selectable)
- RS485
- Yes
- RF reader
- 13.56 MHz and 125 kHz
- NFC
- Yes (Android phones only)
Video
- Sensor
- 1/2.8″ CMOS
- Resolutions
- CIF, VGA, 4CIF, 720p, 1080p
- Maximum resolution
- 1920 × 1080
- Frame rate
- 1080p at 30 fps
- Codec
- H.264
- Viewing angle
- 110° (H) / 58° (V)
- White balance
- Auto
- Minimum illumination
- 0.1 lux
- Third-party video
- Compatible with NVRs (ONVIF, RTSP)
Audio
- SIP
- SIP v1 (RFC 2543), SIP v2 (RFC 3261)
- Narrowband codecs
- G.711a, G.711μ
- Wideband codec
- G.722
- DTMF
- In-band, out-of-band (RFC 2833), SIP INFO
- Processing
- Echo cancellation, noise suppression, voice activity detection, comfort noise generator
Door entry and capacity
- Relay control
- Each relay controlled individually by DTMF tones
- Camera
- Permanently operational
- Card types
- EM, MIFARE, DESFire EV1 / EV2 / EV3
- Users
- 4,000
- Cards
- 20,000
Network and management
- Protocols
- IPv4, HTTP, HTTPS, FTP, DNS, NTP, RTSP, RTP, TCP, UDP, ICMP, DHCP, ARP
- Provisioning
- Auto-provisioning
- Management
- Web portal, configuration backup / restore, firmware upgrade
- Logs
- System logs including door access logs, entry log export, web packet capture
- Access table
- Export / import
Installation and in the box
- In the box
- R20A door phone, wiring cover, sealing pressing plate, safety rope, 6 × M2.5×6 screws, 2 diodes, 3 rubber cable plugs
- Wall-mounting set
- Wall-mounting bracket, 4 wall-mounting screws, 2 × M3×6 hex socket screws, Allen wrench, 2 × M4×30 screws, 4 × ST4×20 screws, 4 wall anchors
- Alternative power
- 12 V DC, 1 A adapter (not included)
- 12 V DC cable run
- Up to 50 m on 20 AWG, 40 m on 22 AWG, 20 m on 24 AWG
- Mounting height
- Camera centre about 1500 mm above the ground
Pair it with
Builds a complete door entry system
Indoor
Akuvox indoor monitor
Answer, see the visitor and release the door from a compatible Akuvox SIP indoor station or the SmartPlus app.
Flush
R20A / R25A in-wall kit (black)
Recesses the station into the wall in a matching finish.
Weather
R20A / R25A rain hood (black)
On-wall and in-wall hoods keep driving rain off the camera and button.
Angle
R20A / R25A angle bracket
Turns the camera towards visitors where the station sits side-on to the path.
Works with
Platforms and integrations
SIP PBX and IP phones
Standard SIP v1 / v2 lets the R20A call Akuvox monitors, IP phones or extensions on your own PBX.
NVRs over ONVIF / RTSP
Record the 1080p door picture on an ONVIF or RTSP-capable NVR alongside your CCTV cameras.
Akuvox SmartPlus
Residents answer calls and open the door from the SmartPlus app on iOS or Android.
Wiegand and RS485 access control
The selectable Wiegand port and RS485 connect the R20A to third-party access controllers and readers.
Watch
See it in action
Downloads
Datasheets and guides
PDFR20A DatasheetAkuvox R20A datasheet V7.0 (2026) · 276 KBPDFR20A on-wall install guideOfficial Akuvox R20A on-wall install guide (PDF) · 4.1 MBPDFR20A in-wall install guideOfficial Akuvox R20A in-wall install guide (PDF) · 7.6 MBPDFR20A dimension drawingsDoor phone, bracket, rain cover and in-wall box drawings in mm, September 2025 · 1.1 MB
Compliance certificates and technical documents are available on request for tenders and installers — send an enquiry.
Answers
Common questions
How is the black R20A different from the silver R20A?
Only the finish. Camera, card reader, relays, capacity and housing are identical and both use the same brackets — pick the black in-wall kit and rain hoods to match.
How does R20A compare with R25A?
Both are 145 × 85 mm single-button stations with two relays. R20A has a 2 MP camera covering 110° × 58° and stores 20,000 cards and 4,000 users; R25A has a 4 MP fisheye covering 150° × 150° and stores 5,000 cards and 1,000 users.
How many cards and users does it store?
Up to 20,000 cards and 4,000 users, on EM (125 kHz), MIFARE and DESFire EV1 / EV2 / EV3 (13.56 MHz) credentials. Access tables can be exported and imported through the web portal.
What power does it need?
IEEE 802.3af PoE over the network cable, or a 12 V DC 1 A adapter. On 12 V DC keep the power run within 50 m on 20 AWG, 40 m on 22 AWG or 20 m on 24 AWG cable.
Can it be flush-mounted?
Yes, with the black R20A / R25A in-wall installation kit (sold separately), which needs a 180 × 101 × 50 mm wall recess.
Will it record to my NVR?
Yes. The R20A supports ONVIF and RTSP, so ONVIF-capable NVRs can add it as a camera channel.
What comes in the box?
The door phone with its wall-mounting bracket and fixings, wiring cover, rubber cable plugs and two diodes for lock coils. Indoor monitor, power supply and lock hardware are sold separately.
Does it have a keypad?
No — entry is by card, Android NFC, the indoor monitor or the SmartPlus app. For PIN entry choose the R20K.
A video door phone for tight spots.
Choose the black R20A to suit the entry; the silver R20A has identical electronics. Want a wider fisheye picture? See the R25A.
Installation & safety notice
Low-voltage product (SELV). Power from IEEE 802.3af PoE or a 12 V DC 1 A adapter. Treat as SELV low-voltage equipment.
When a licensed tradesperson is required. Concealed data and intercom cabling is customer cabling under AS/CA S009 and must be installed by an ACMA-registered cabler. Electric locks, maglocks and lock power supplies may require a licensed electrician or security installer.
- Audio
- SIP v1 / v2, G.711, G.722, echo cancellation
- Power
- PoE 802.3af or 12 V DC 1 A
- Colour
- Black
- Capacity
- 20,000 cards, 4,000 users
- Working Temperature
- −30 °C to +60 °C
- Brand
- Akuvox
- Protection
- IP65
- Camera
- 2 MP, 1/2.8″ CMOS, 110° (H) / 58° (V)
- Mounting
- Surface mount; flush with in-wall kit
- Size
- 145 × 85 × 24 mm (H × W × D)
- Warranty
- Australian warranty
- Video
- H.264, up to 1920 × 1080, 1080p at 30 fps
- Product Type
- SIP door station
- Model
- R20A
- Finish
- Black aluminium alloy
- RF Reader
- 13.56 MHz and 125 kHz, NFC (Android)
- Night Vision
- IR LEDs, light sensor, 0.1 lux minimum
- I/O
- 2 relays, 2 inputs, Wiegand, RS485
- Call button
- 1, blue backlight
- Card Types
- EM, MIFARE, DESFire EV1 / EV2 / EV3
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Akuvox R20A / R25A Black In-Wall Installation Kit with Flush Box — AK-R20INWALLK-BLACK
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