Product comparison · 2 video intercom systems

Dahua Technology VTO4202F-P-S3 video intercom system vs Dahua Technology VTO6521F video intercom system

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  • 40specifications compared
  • 15differ
  • 25identical
  • 35known for one product only

Key differences

The Dahua Technology VTO6521F video intercom system has 5 fps more maximum frame rate than the Dahua Technology VTO4202F-P-S3 video intercom system (30 fps vs 25 fps). The Dahua Technology VTO4202F-P-S3 video intercom system has 54.81° more viewing angle, horizontal than the Dahua Technology VTO6521F video intercom system (168.6° vs 113.79°). The Dahua Technology VTO4202F-P-S3 video intercom system has 25.6° more viewing angle, vertical than the Dahua Technology VTO6521F video intercom system (87.1° vs 61.5°). Optical sensor size: 25.4 / 2.9 mm (1 / 2.9") on the Dahua Technology VTO4202F-P-S3 video intercom system, 25.4 / 2.7 mm (1 / 2.7") on the Dahua Technology VTO6521F video intercom system. Voice codecs: G.711a, G.711u, PCM on the Dahua Technology VTO4202F-P-S3 video intercom system, G.711u on the Dahua Technology VTO6521F video intercom system.

  • Optical sensor size
    • VTO4202F-P-S3 video intercom system:25.4 / 2.9 mm (1 / 2.9")
    • VTO6521F video intercom system:25.4 / 2.7 mm (1 / 2.7")
  • Maximum frame rate
    • VTO4202F-P-S3 video intercom system:25 fps
    • VTO6521F video intercom system:30 fps
  • Viewing angle, horizontal
    • VTO4202F-P-S3 video intercom system:168.6°
    • VTO6521F video intercom system:113.79°
  • Viewing angle, vertical
    • VTO4202F-P-S3 video intercom system:87.1°
    • VTO6521F video intercom system:61.5°
  • Voice codecs
    • VTO4202F-P-S3 video intercom system:G.711a, G.711u, PCM
    • VTO6521F video intercom system:G.711u
  • Maximum memory card size
    • VTO4202F-P-S3 video intercom system:256 GB
    • VTO6521F video intercom system:4 GB
  • Operating system installed
    • VTO4202F-P-S3 video intercom system:Embedded LINUX
    • VTO6521F video intercom system:Linux
  • Outdoor unit power type
    • VTO4202F-P-S3 video intercom system:DC/PoE
    • VTO6521F video intercom system:DC

Side by side

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Comparison of VTO4202F-P-S3, VTO6521F
75 specifications
A

Dahua Technology

VTO4202F-P-S3 video intercom system

Model VTO4202F-P-S3

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B

Dahua Technology

VTO6521F video intercom system

Model VTO6521F

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Featuresidentical
Connectivity technologyWiredWired
Number of displays supportedKnown for oneUnknown — not stated by the source1
Maximum number of cameras supportedKnown for oneUnknown — not stated by the source1
SpeakerphoneYesYes
RFID readerKnown for oneUnknown — not stated by the sourceYes
Fingerprint readerKnown for oneUnknown — not stated by the sourceYes
Automatic gain controlKnown for oneUnknown — not stated by the sourceYes
Built-in microphoneYesYes
Door station controlYesYes
Motion detection functionKnown for oneUnknown — not stated by the sourceYes
VoIP protocolsKnown for oneUnknown — not stated by the sourceSIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDP
Wall mountableYesYes
Streaming capabilityKnown for oneYesUnknown — not stated by the source
Displayidentical
Display diagonalKnown for oneUnknown — not stated by the source10.9 cm (4.3")
Display technologyKnown for oneUnknown — not stated by the sourceIPS
Display resolutionKnown for oneUnknown — not stated by the source800 x 480 pixels
Video formats supportedKnown for oneUnknown — not stated by the sourceH.264
Wide Dynamic Range (WDR)Known for oneYesUnknown — not stated by the source
Camera4 differ
Megapixel (approx.)2 MP2 MP
Supported video modes720p, 1080p720p, 1080p
Sensor typeCMOSCMOS
Optical sensor sizeDiffers25.4 / 2.9 mm (1 / 2.9")25.4 / 2.7 mm (1 / 2.7")
Maximum frame rateDiffers25 fps30 fps
Viewing angle, horizontalDiffers168.6°113.79°
Viewing angle, verticalDiffers87.1°61.5°
Maximum video resolutionKnown for one1920 x 1080 pixelsUnknown — not stated by the source
Day/night modeKnown for oneYesUnknown — not stated by the source
Field of view (FOV) angleKnown for one176.7°Unknown — not stated by the source
Viewing angle, diagonalKnown for one176.7°Unknown — not stated by the source
Audio1 differ
Built-in speaker(s)YesYes
Noise-cancelingKnown for oneUnknown — not stated by the sourceYes
Voice codecsDiffersG.711a, G.711u, PCMG.711u
Number of speakersKnown for one1Unknown — not stated by the source
Designidentical
Product colourSilverSilver
IK codeIK07IK07
International Protection (IP) codeIP65IP65
Control typeButtonsButtons
Housing materialAluminiumAluminium
Placement supportedVerticalVertical
Proper useOutdoorOutdoor
Storage1 differ
Memory card slotYesYes
Maximum memory card sizeDiffers256 GB4 GB
Included memory card sizeKnown for oneUnknown — not stated by the source1 GB
Compatible memory cardsKnown for oneMicroSD (TransFlash)Unknown — not stated by the source
Network1 differ
Ethernet interface typeFast EthernetFast Ethernet
Ethernet LAN data rates10,100 Mbit/s10,100 Mbit/s
Ethernet LAN (RJ-45) ports11
Cabling technologyKnown for oneUnknown — not stated by the source10/100Base-T(X)
Power over Ethernet (PoE)YesYes
Supported network protocolsDiffersIPv4; RTSP; UDP; DNS; P2P; UPnP; RTP; TCP; SIPSIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDP
Software1 differ
Operating system installedDiffersEmbedded LINUXLinux
Power3 differ
Outdoor unit power typeDiffersDC/PoEDC
AC adapter output voltageKnown for oneUnknown — not stated by the source12 V
AC adapter output currentKnown for oneUnknown — not stated by the source2 A
Power consumption (typical)Differs5 W18 W
Power consumption (standby)Differs4 W5 W
Operational conditionsidentical
Operating relative humidity (H-H)10 - 90%10 - 90%
Operating temperature (T-T)-30 - 60 °C-30 - 60 °C
Storage temperature (T-T)Known for one0 - 40 °CUnknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers100 mm145 mm
DepthDiffers49.4 mm41.9 mm
HeightDiffers100 mm389 mm
WeightKnown for oneUnknown — not stated by the source1.4 kg
Packaging data1 differ
Outdoor unit includedYesYes
Package weightDiffers430 g1.68 kg
Indoor unit includedKnown for oneNoUnknown — not stated by the source
Logistics dataidentical
Quantity per pack1 pc(s)1 pc(s)
Minimum order quantityKnown for oneUnknown — not stated by the source1 pc(s)
Technical detailsidentical
Compliance certificatesKnown for oneUnknown — not stated by the sourceCE, Federal Communications Commission (FCC)
Sustainability complianceKnown for oneUnknown — not stated by the sourceYes
CertificationKnown for oneCEUnknown — not stated by the source
Night visionidentical
Night visionKnown for oneYesUnknown — not stated by the source
LED typeKnown for oneIRUnknown — not stated by the source
Outdoor unitidentical
RS-485 ports (transmitter)Known for one1Unknown — not stated by the source
Management featuresidentical
Web-based managementKnown for oneYesUnknown — not stated by the source

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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