Brand originChina
Supported
Supported
Dahua VTO6521H-S2
Category
Intercom
First seen by Awernica
Oct 2026
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Software Support
Not specified
No published date
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 OS
- Button Type
- Touch button
- Interoperability
- CGI;ONVIF
- Network Protocol
- RTMP;HTTP/HTTPS;DNS;RTSP;SSH;ONVIF;SIP;RTP
Basic
- Screen Type
- Non-touchscreen
- Display Screen
- 4.3-inch display screen
- Screen Resolution
- 800 (H) × 480 (V)
- Camera
- 1/2.8" 2MP CMOS high-definition, low illumination, cameras
- Field of View
- H: 95°; V: 50°; D: 110°
- WDR
- 120 dB
- Noise Reduction
- 3D NR
- Video Compression
- H.264; H.265
- Video Resolution
- Main stream: 720P/D1/WVGA;; Sub stream: 1080P/720P/D1/WVGA/CIF/QVGA
- Video Frame Rate
- 25 fps
- Video Bit Rate
- 1,024 kbps–8,192 kbps
- Light Compensation
- Auto white light
- Audio Compression
- G.711a; G.711u; PCM
- Audio Input
- 1 channel
- Audio Output
- Built-in speaker
- Audio Mode
- Two-way audio
- Audio Enhancement
- Echo suppression/digital noise reduction
- Audio Bit Rate
- 16 kHz, 16 bit
Function
- Communication Mode
- Full digital
- Verification Method
- Remote;Card;Password
- Auto Snapshot
- Yes
- Information Release
- Receive and view text information released by the management center.
- Leave Videos
- Yes (SD card inserted in VTH is needed)
- Web Configuration
- Yes
- Auto Registration
- Yes
RFID
- Card Type
- IC card
Performance
- Card Reading Distance
- 0 cm–5 cm (IC card)
- Issue Card Locally
- Yes
- Casing Material
- PC + ABS
Capacity
- Card Capacity
- 20,000
Port
- RS-485
- 1
- Wiegand
- 1 (they can be set as an input or output port)
- Alarm Input
- 2 channels
- Alarm Output
- 2 channels
- Power Output
- 1 port (12 V, 500 mA)
- Exit Button
- 1 channel
- Door Status Detection
- 1 channel
- Lock Control
- 1 channel, open by default
- Network Port
- 1 × 10 Mbps/100 Mbps Ethernet port
Alarm
- Tamper Alarm
- Yes
General
- Unlock Password Mode
- User, public and duress passwords
- Appearance Color
- Silver
- Power Supply
- 12 VDC, 2 A;; Standard PoE
- Power Adapter
- Optional
- Installation
- Flush Mount;Wall Mount
- Certifications
- CE
- Accessory
- Power supply (optional);; Flush mount box (optional)
- Product Dimensions
- 388.5 mm × 145.5 mm × 43.5 mm (15.30" × 5.73" × 1.71") (H × W × D)
- Protection
- IP65 rated (Silicone sealant is required. See the quick start guide for more information).
- Operating Temperature
- –30 °C to +60 °C (–22 °F to +140 °F)
- Operating Humidity
- 0%–90% (RH), non-condensing
- Operating Altitude
- 0 m–3,000 m (0 ft–9842.52 ft)
- Power Consumption
- ≤5 W (standby), ≤18 W (working)
- Gross Weight
- 1.48 kg (3.26 lb)
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