Brand originChina
Discontinued
Discontinued
Dahua VTO6521H
Category
Intercom
First seen by Awernica
Oct 2026
Keep every device you have installed in one list – firmware, lifecycle and replacements. No card.
Software Support
2026-12-31
2 months left
Replacement
Not specified
No verified replacement
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Specifications
From the manufacturer's product information.
System
- Main Processor
- Embedded processor
- Operating System
- Embedded Linux operating system
- Button Type
- Touch button
- Network Protocol
- SIP; P2P; IPv4; FTP; UPnP; DNS; DDNS; RTSP; RTP; TCP; UDP
- ROM
- 4GB
- RAM
- 1GB
Basic
- Display
- 4.3 inch IPS screen
- Screen Resolution
- 800×480
- Camera
- 1/2.7" 2MP CMOS high definition, low illumination, white illuminator and IR illuminator
- Field of View
- Horizontal: 113.79°; vertical: 61.5°;; diagonal: 134.45°
- Focal Length
- 2.8mm
- Aperture
- F2.0
- WDR
- 120dB
- Noise Reduction
- 3D noise reduction
- Video Compression
- H.264
- Video Resolution
- Main Stream: 720p, sub stream: 1080P
- Frame Rate
- Main Stream (720P@25fps), sub stream (1080P@25fps); Main Stream (720P@30fps), sub stream (1080P@30fps)
- Video Bit Rate
- 256Kbps–2048Kbps
- Light Compensation
- Auto white light
- Audio Compression
- G.711u
- Audio Input
- 1
- Audio Output
- Built-in speaker
- Audio Mode
- Full duplex communication
- Audio Enhancement
- Echo suppression and cancellation/digital noise reduction
- Audio Bit Rate
- 16KHz, 16Bit
- Communication Mode
- Full digital
- Unlock Mode
- Card/remote/password unlock
- Card Type
- IC card
- Motion Detection
- Video motion detection
- Auto Snapshot
- Yes
- Leave Videos or Text Messages
- Yes
- Web Configuration
- Yes
Performance
- Card Reading Distance
- 1cm–5cm
- Issue Card Locally
- Yes
- Casing Material
- PC+ABS
Capacity
- Card
- 10, 000
Port
- RS-485
- 1
- Wiegand
- 1 input port, 1 output port
- Electric lock
- 1
- Alarm Input
- 2
- Alarm Output
- 2
- Power Output
- 1 12V/100mA
- Exit Button
- 1
- Door Status Detection
- 1
- Lock Control
- 1, normally open by default
- Network
- 1 RJ-45 10Mbps/100Mbps self-adaptive
Alarm
- Tamper
- Yes
General
- Unlock Password Mode
- User password/public password/duress password
- Color
- Silver
- Power Supply Mode
- DC 12V2A
- Power Adapter
- Optional
- Installation
- Surface mount and Flush mount
- Certification
- CE/FCC
- Accessory
- Optional
- Product Dimensions
- 389 mm×145 mm×41.9 mm (15.31"×5.71"×1.65")
- Protection Grade
- IP65 (silicone sealant is needed, see the quick start guide)
- Operating Temperature
- -30°C to +60°C (-22°F to +140°F)
- Operating Humidity
- 10%RH–90%RH (non-condensing)
- Operating Altitude
- 86kPa–106kPa
- Power Consumption
- ≤5W (standby), ≤18W (working)
- Net Weight
- 1.4 kg (3.09 lb)
- Gross Weight
- 1.68 kg (3.70 lb)
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