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Product comparison · 2 video intercom systems

Dahua Technology VTO3211D-P1-S2 video intercom system vs Dahua Technology VTO6521K video intercom system

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  • 46specifications compared
  • 15differ
  • 31identical
  • 20known for one product only

Key differences

The Dahua Technology VTO3211D-P1-S2 video intercom system has 42.6° more viewing angle, horizontal than the Dahua Technology VTO6521K video intercom system (129° vs 86.4°). The Dahua Technology VTO3211D-P1-S2 video intercom system has 27.8° more viewing angle, vertical than the Dahua Technology VTO6521K video intercom system (74° vs 46.2°). The Dahua Technology VTO6521K video intercom system has 1 A more AC adapter output current than the Dahua Technology VTO3211D-P1-S2 video intercom system (2 A vs 1 A). Voice codecs: G.711Mu, G.711u, PCM on the Dahua Technology VTO3211D-P1-S2 video intercom system, G.711a, G.711u, PCM on the Dahua Technology VTO6521K video intercom system. Product colour: Black, Grey on the Dahua Technology VTO3211D-P1-S2 video intercom system, Stainless steel on the Dahua Technology VTO6521K video intercom system.

  • Viewing angle, horizontal
    • 129°
    • 86.4°
  • Viewing angle, vertical
    • 74°
    • 46.2°
  • Voice codecs
    • G.711Mu, G.711u, PCM
    • G.711a, G.711u, PCM
  • Product colour
    • Black, Grey
    • Stainless steel
  • Operating system installed
    • Embedded LINUX
    • Linux
  • AC adapter output current
    • 1 A
    • 2 A
  • Power consumption (typical)
    • 7 W
    • 18 W
  • Power consumption (standby)
    • 1 W
    • 5 W

Side by side

Differences highlightedShow differences only
66 specifications
A

Dahua Technology

VTO3211D-P1-S2 video intercom system

Model VTO3211D-P1-S2

View product
B

Dahua Technology

VTO6521K video intercom system

Model VTO6521K

View product
Features1 differ
Connectivity technologyWiredWired
ColourNoNo
Maximum number of cameras supported11
SpeakerphoneYesYes
RFID readerYesYes
Fingerprint readerKnown for oneYes
Automatic gain controlKnown for oneYes
Built-in microphoneYesYes
Door station controlKnown for oneYes
Motion detection functionYesYes
VoIP protocolsDiffersSIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDPRTSP, DNS, P2P, UPnP, RTP, RTMP, SIP, SSH, HTTP/HTTPS, ONVIF
Wall mountableYesYes
Echo cancellationKnown for oneYes
Number of buttonsKnown for one2 buttons
Displayidentical
Display diagonalKnown for one10.9 cm (4.3")
Display technologyKnown for oneLCD
Display resolutionKnown for one800 x 480 pixels
TouchscreenKnown for oneNo
Video formats supportedH.264H.264
Camera2 differ
Megapixel (approx.)2 MP2 MP
Supported video modesKnown for one720p, 1080p
Sensor typeCMOSCMOS
Optical sensor size25.4 / 2.8 mm (1 / 2.8")25.4 / 2.8 mm (1 / 2.8")
Maximum frame rateKnown for one30 fps
Viewing angle, horizontalDiffers129°86.4°
Viewing angle, verticalDiffers74°46.2°
Field of view (FOV) angleKnown for one147°
Audio1 differ
Built-in speaker(s)YesYes
Noise-cancelingKnown for oneYes
Voice codecsDiffersG.711Mu, G.711u, PCMG.711a, G.711u, PCM
Design2 differ
Product colourDiffersBlack, GreyStainless steel
IK codeIK08IK08
International Protection (IP) codeIP65IP65
Control typeButtonsButtons
Housing materialDiffersAluminium, Metal, Polycarbonate (PC)Stainless steel
Placement supportedVerticalVertical
Proper useOutdoorOutdoor
Outdoor unit housing materialKnown for oneAluminium
Network1 differ
Ethernet interface typeFast EthernetFast Ethernet
Ethernet LAN data rates10,100 Mbit/s10,100 Mbit/s
Ethernet LAN (RJ-45) ports11
Cabling technology10/100Base-T(X)10/100Base-T(X)
Power over Ethernet (PoE)YesYes
Supported network protocolsDiffersSIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDPRTSP, DNS, P2P, UPnP, RTP, RTMP, SIP, SSH, HTTP/HTTPS, ONVIF
Software1 differ
Operating system installedDiffersEmbedded LINUXLinux
Power3 differ
Outdoor unit power typeDCDC
AC adapter output voltage12 V12 V
AC adapter output currentDiffers1 A2 A
Power consumptionKnown for one200 mA
Power consumption (typical)Differs7 W18 W
Power consumption (standby)Differs1 W5 W
Operational conditions1 differ
Operating relative humidity (H-H)Differs10 - 95%10 - 90%
Operating temperature (T-T)-30 - 60 °C-30 - 60 °C
Weight & dimensions3 differ
WidthDiffers101 mm143 mm
DepthDiffers31 mm54 mm
HeightDiffers181 mm406 mm
WeightKnown for one660 g
Packaging dataidentical
Outdoor unit includedYesYes
Package weightKnown for one2.05 kg
Indoor unit includedKnown for oneYes
Logistics dataidentical
Quantity per pack1 pc(s)1 pc(s)
Minimum order quantity1 pc(s)1 pc(s)
Technical detailsidentical
Compliance certificatesCE, Federal Communications Commission (FCC)CE, Federal Communications Commission (FCC)
Sustainability complianceYesYes
Night visionidentical
Night visionKnown for oneYes
LED typeKnown for oneIR

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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