The Dahua DHI-VTO6521K-S2 (VTO6521K-S2) is a 2MP IP video intercom door station with a 4.3-inch LCD, built for apartment door entry at multi-tenant entrances such as office buildings, compound buildings and communities. It has a 1/2.8" 2MP camera with 120 dB WDR and auto white light, a stainless steel panel rated IP65 (IK08 per Dahua's product page), and can be powered from 12 VDC or standard PoE. The video intercom works with Dahua indoor monitors (VTH), master stations (VTS) and the app, so the door station can form part of an intercom system and a video door entry system for the building.
Also listed as VTO6521K-S2.
Apartment blocks, office buildings and multi-occupancy entrances that need a video intercom door station with password, IC card and remote unlock, and support for a large number of users. Dahua's application diagram also shows a fence entrance, so it can be used as a gate intercom as well as a door entry system for a building.
| Model | DHI-VTO6521K-S2 (Dahua product page name: VTO6521K-S2) |
| Product type | IP apartment door station |
| Display | 4.3-inch non-touchscreen, 800 (H) x 480 (V), mechanical buttons |
| Camera | 1/2.8" 2MP CMOS, high definition, low illumination |
| Field of view | H: 95°; V: 50°; D: 110° |
| WDR / noise reduction | 120 dB / 3D NR |
| Video compression | H.264; H.265, 25 fps, 1,024 kbps to 8,192 kbps |
| Video resolution | Main stream: 720P/D1/WVGA; sub stream: 1080P/720P/D1/WVGA/CIF/QVGA |
| Light compensation | Auto white light |
| Audio | Two-way audio, built-in speaker, 1 channel input, G.711a; G.711u; PCM, echo suppression and digital noise reduction |
| Communication | Full digital; verification by remote, card or password |
| Card | IC card, reading distance 0 cm to 4 cm, issue card locally, 20,000 cards |
| Ports | RS-485, Wiegand, 2 alarm inputs, 2 alarm outputs, 1 x 12 V 500 mA power output, exit button, door status detection, lock control, 1 x 10/100 Mbps Ethernet |
| Protocols | FTP; RTMP; HTTP/HTTPS; DNS; RTSP; SSH; ONVIF; SIP; RTP; CGI |
| Power supply | 12 VDC, 2 A; standard PoE |
| Power consumption | 5 W standby, 18 W working |
| Installation | Flush mount; wall mount |
| Casing | Stainless steel precision casting, silver |
| Protection | IP65 (silicone sealant required); IK08 per Dahua product page |
| Operating temperature | -30 °C to +60 °C, 0% to 90% RH non-condensing, altitude 0 m to 1,300 m |
| Dimensions / gross weight | 406 x 143 x 54.05 mm (H x W x D) / 2.3 kg |
| Certification | CE |
Password, IC card, QR code (supported by DSS) or remotely, through the indoor monitor, management center or app.
Dahua lists 40,000 users and 20,000 cards.
Yes, it works as an outdoor intercom door station. It is rated IP65 (silicone sealant is required, see the quick start guide) and IK08 on Dahua's product page, and operates from -30 °C to +60 °C.
Dahua's datasheet application diagram shows a fence entrance, so it can be used as a gate intercom at a fenced entrance as well as at building entrances.
From 12 VDC, 2 A or standard PoE. If the 12 V output powers a load, connect it to a PSE switch that complies with 802.3at.
Dahua lists the VTOB103 flush mounted box and the VTM57R surface mounted box with rain cover.
It supports leaving audio and video messages when no one responds through the indoor monitor (an SD card in the indoor monitor is required).
Full manufacturer specification: Dahua product page
Download the Dahua DHI-VTO6521K-S2 datasheet (PDF).
Supplied by Zenith Security Co, Wolverhampton. We deliver to England, Scotland and Wales, or you can collect from our Wolverhampton trade counter (please call first). Browse the full Dahua range, our Access control category or contact us on 01902 902251.
Browse the range: Dahua video intercom · Dahua cameras.
| Product Code | DHI-VTO6521K-S2 |
|---|---|
| Brand | Dahua |
| Product Type | Video Intercom |
| Power | DC12V |
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