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Product comparison · 2 video intercom systems

Dahua Technology VTH2421FB video intercom system vs Dahua Technology VTO7521G video intercom system

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  • 23specifications compared
  • 13differ
  • 10identical
  • 39known for one product only

Key differences

The Dahua Technology VTO7521G video intercom system has 17 W more power consumption (typical) than the Dahua Technology VTH2421FB video intercom system (24 W vs 7 W). The Dahua Technology VTH2421FB video intercom system has 76.5 mm more width than the Dahua Technology VTO7521G video intercom system (221.5 mm vs 145 mm). The Dahua Technology VTO7521G video intercom system has 21.5 mm more depth than the Dahua Technology VTH2421FB video intercom system (43 mm vs 21.5 mm). Only the Dahua Technology VTO7521G video intercom system has outdoor unit included. Display diagonal: 17.8 cm (7") on the Dahua Technology VTH2421FB video intercom system, 20.3 cm (8") on the Dahua Technology VTO7521G video intercom system.

  • Display diagonal
    • 17.8 cm (7")
    • 20.3 cm (8")
  • Display technology
    • LCD
    • IPS
  • Display resolution
    • 1024 x 600 pixels
    • 800 x 1280 pixels
  • Product colour
    • Black
    • Grey
  • Placement supported
    • Horizontal
    • Vertical
  • Ethernet interface type
    • Fast Ethernet
    • Gigabit Ethernet
  • Ethernet LAN data rates
    • 10,100 Mbit/s
    • 10,100,1000 Mbit/s
  • Power consumption (typical)
    • 7 W
    • 24 W

Side by side

Differences highlightedShow differences only
62 specifications
A

Dahua Technology

VTH2421FB video intercom system

Model VTH2421FB

View product
B

Dahua Technology

VTO7521G video intercom system

Model VTO7521G

View product
Featuresidentical
Maximum number of cameras supportedKnown for one2
RFID readerKnown for oneYes
Fingerprint readerKnown for oneYes
Automatic gain controlKnown for oneYes
Door station controlKnown for oneYes
Motion detection functionKnown for oneYes
VoIP protocolsKnown for oneIPv4, FTP, DNS, RTSP, RTP, TCP, UDP, SIP
Display3 differ
Display diagonalDiffers17.8 cm (7")20.3 cm (8")
Display technologyDiffersLCDIPS
Display resolutionDiffers1024 x 600 pixels800 x 1280 pixels
Backlight displayKnown for oneYes
Video formats supportedKnown for oneH.264
Cameraidentical
Megapixel (approx.)Known for one2 MP
Sensor typeKnown for oneCMOS
Optical sensor sizeKnown for one25.4 / 2.8 mm (1 / 2.8")
Viewing angle, horizontalKnown for one88°
Viewing angle, verticalKnown for one47°
Audioidentical
Noise-cancelingKnown for oneYes
Number of speakersKnown for one1
Voice codecsKnown for oneG.711
Design2 differ
Product colourDiffersBlackGrey
IK codeKnown for oneIK07
International Protection (IP) codeKnown for oneIP66
Control typeKnown for oneTouch
Housing materialKnown for oneAcrylonitrile butadiene styrene (ABS), Aluminium, Polycarbonate (PC)
Placement supportedDiffersHorizontalVertical
Proper useKnown for oneOutdoor
Network3 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 technologyKnown for one10/100/1000Base-T(X)
Power over Ethernet (PoE)Known for oneYes
Supported network protocolsDiffersTCP/IPIPv4, FTP, DNS, RTSP, RTP, TCP, UDP, SIP
Power1 differ
AC adapter output voltageKnown for one12 V
AC adapter output currentKnown for one2 A
Power consumptionKnown for one100 mA
Power consumption (typical)Differs7 W24 W
Power consumption (standby)Known for one1 W
Operational conditionsidentical
Operating relative humidity (H-H)Known for one10 - 90%
Operating temperature (T-T)Known for one-20 - 60 °C
Weight & dimensions3 differ
WidthDiffers221.5 mm145 mm
DepthDiffers21.5 mm43 mm
HeightDiffers119.6 mm389 mm
WeightKnown for one350 g
Packaging data1 differ
Outdoor unit includedDiffersNoYes
Package widthKnown for one182 mm
Package depthKnown for one104 mm
Package heightKnown for one413 mm
Package weightKnown for one1.91 kg
Indoor unit includedKnown for oneYes
Logistics dataidentical
Quantity per packKnown for one1 pc(s)
Minimum order quantityKnown for one1 pc(s)

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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