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Product comparison · 2 video intercom systems

Dahua Technology DHI-VTO3211D-P4-S2 video intercom system vs Dahua Technology VTO7521G video intercom system

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  • 29specifications compared
  • 15differ
  • 14identical
  • 36known for one product only

Key differences

The Dahua Technology DHI-VTO3211D-P4-S2 video intercom system has 41° more viewing angle, horizontal than the Dahua Technology VTO7521G video intercom system (129° vs 88°). The Dahua Technology DHI-VTO3211D-P4-S2 video intercom system has 27° more viewing angle, vertical than the Dahua Technology VTO7521G video intercom system (74° vs 47°). The Dahua Technology VTO7521G video intercom system has 44 mm more width than the Dahua Technology DHI-VTO3211D-P4-S2 video intercom system (145 mm vs 101 mm). IK code: IK08 on the Dahua Technology DHI-VTO3211D-P4-S2 video intercom system, IK07 on the Dahua Technology VTO7521G video intercom system. International Protection (IP) code: IP65 on the Dahua Technology DHI-VTO3211D-P4-S2 video intercom system, IP66 on the Dahua Technology VTO7521G video intercom system.

  • Viewing angle, horizontal
    • 129°
    • 88°
  • Viewing angle, vertical
    • 74°
    • 47°
  • IK code
    • IK08
    • IK07
  • International Protection (IP) code
    • IP65
    • IP66
  • Control type
    • Buttons
    • Touch
  • Ethernet interface type
    • Fast Ethernet
    • Gigabit Ethernet
  • Ethernet LAN data rates
    • 10,100 Mbit/s
    • 10,100,1000 Mbit/s
  • Cabling technology
    • 10/100Base-T(X)
    • 10/100/1000Base-T(X)

Side by side

Differences highlightedShow differences only
65 specifications
A

Dahua Technology

DHI-VTO3211D-P4-S2 video intercom system

Model DHI-VTO3211D-P4-S2

View product
B

Dahua Technology

VTO7521G video intercom system

Model VTO7521G

View product
Featuresidentical
Connectivity technologyWiredWired
ColourYesYes
Number of displays supportedKnown for one1
Maximum number of cameras supportedKnown for one2
SpeakerphoneYesYes
RFID readerYesYes
Fingerprint readerKnown for oneYes
Automatic gain controlKnown for oneYes
Built-in microphoneYesYes
Door station controlKnown for oneYes
Motion detection functionKnown for oneYes
VoIP protocolsKnown for oneIPv4, FTP, DNS, RTSP, RTP, TCP, UDP, SIP
Wall mountableYesYes
Number of buttonsKnown for one4 buttons
Video codecsKnown for oneH.264
Displayidentical
Display diagonalKnown for one20.3 cm (8")
Display technologyKnown for oneIPS
Display resolutionKnown for one800 x 1280 pixels
TouchscreenKnown for oneYes
Touchscreen typeKnown for oneCapacitive
Camera2 differ
Megapixel (approx.)2 MP2 MP
Sensor typeCMOSCMOS
Optical sensor size25.4 / 2.8 mm (1 / 2.8")25.4 / 2.8 mm (1 / 2.8")
Viewing angle, horizontalDiffers129°88°
Viewing angle, verticalDiffers74°47°
Field of view (FOV) angleKnown for one147°
Audioidentical
Built-in speaker(s)YesYes
Noise-cancelingKnown for oneYes
Voice codecsKnown for oneG.711
Design3 differ
Product colourGreyGrey
IK codeDiffersIK08IK07
International Protection (IP) codeDiffersIP65IP66
Control typeDiffersButtonsTouch
Housing materialKnown for oneAcrylonitrile butadiene styrene (ABS), Aluminium, Polycarbonate (PC)
Placement supportedKnown for oneVertical
Proper useOutdoorOutdoor
Outdoor unit housing materialKnown for oneZinc alloy
Network4 differ
Ethernet interface typeDiffersFast EthernetGigabit Ethernet
Ethernet LAN data ratesDiffers10,100 Mbit/s10,100,1000 Mbit/s
Ethernet LAN (RJ-45) portsKnown for one1
Cabling technologyDiffers10/100Base-T(X)10/100/1000Base-T(X)
Power over Ethernet (PoE)YesYes
Supported network protocolsDiffersSIP; P2P; IPv4; DNS; RTSP; RTP; TCP; UDPIPv4, FTP, DNS, RTSP, RTP, TCP, UDP, SIP
Poweridentical
Indoor unit power typeKnown for oneDC
AC adapter output voltageKnown for one12 V
AC adapter output currentKnown for one2 A
Power consumptionKnown for one100 mA
Power consumption (typical)Known for one24 W
Outdoor unit power typeKnown for oneDC
Operational conditions2 differ
Operating relative humidity (H-H)Differs10 - 95%10 - 90%
Operating temperature (T-T)Differs-40 - 60 °C-20 - 60 °C
Weight & dimensions3 differ
WidthDiffers101 mm145 mm
DepthDiffers30 mm43 mm
HeightDiffers182 mm389 mm
WeightKnown for one800 g
Packaging data1 differ
Outdoor unit includedYesYes
Package widthKnown for one182 mm
Package depthKnown for one104 mm
Package heightKnown for one413 mm
Package weightDiffers660 g1.91 kg
Indoor unit includedKnown for oneYes
Logistics dataidentical
Quantity per packKnown for one1 pc(s)
Minimum order quantityKnown for one1 pc(s)
Night visionidentical
Night visionKnown for oneYes
Softwareidentical
Operating system installedKnown for oneLinux

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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