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Product comparison · 2 video intercom systems

Dahua Technology VTH2421FB video intercom system vs Dahua Technology VTO6521K video intercom system

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  • 23specifications compared
  • 14differ
  • 9identical
  • 42known for one product only

Key differences

The Dahua Technology VTO6521K video intercom system has 11 W more power consumption (typical) than the Dahua Technology VTH2421FB video intercom system (18 W vs 7 W). The Dahua Technology VTO6521K video intercom system has 4 W more power consumption (standby) than the Dahua Technology VTH2421FB video intercom system (5 W vs 1 W). The Dahua Technology VTH2421FB video intercom system has 78.5 mm more width than the Dahua Technology VTO6521K video intercom system (221.5 mm vs 143 mm). Only the Dahua Technology VTH2421FB video intercom system has colour. Only the Dahua Technology VTH2421FB video intercom system has touchscreen.

  • Colour
    • Yes
    • No
  • Display diagonal
    • 17.8 cm (7")
    • 10.9 cm (4.3")
  • Display resolution
    • 1024 x 600 pixels
    • 800 x 480 pixels
  • Touchscreen
    • Yes
    • No
  • Voice codecs
    • G.711
    • G.711a, G.711u, PCM
  • Product colour
    • Black
    • Stainless steel
  • Placement supported
    • Horizontal
    • Vertical
  • Power consumption (typical)
    • 7 W
    • 18 W

Side by side

Differences highlightedShow differences only
65 specifications
A

Dahua Technology

VTH2421FB video intercom system

Model VTH2421FB

View product
B

Dahua Technology

VTO6521K video intercom system

Model VTO6521K

View product
Features1 differ
Connectivity technologyWiredWired
ColourDiffersYesNo
Maximum number of cameras supportedKnown for one1
SpeakerphoneYesYes
RFID readerKnown for oneYes
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 oneRTSP, DNS, P2P, UPnP, RTP, RTMP, SIP, SSH, HTTP/HTTPS, ONVIF
Wall mountableYesYes
Number of displays supportedKnown for one1
Display3 differ
Display diagonalDiffers17.8 cm (7")10.9 cm (4.3")
Display technologyLCDLCD
Display resolutionDiffers1024 x 600 pixels800 x 480 pixels
TouchscreenDiffersYesNo
Video formats supportedH.264H.264
Backlight displayKnown for oneYes
Touchscreen typeKnown for oneCapacitive
Cameraidentical
Megapixel (approx.)Known for one2 MP
Supported video modesKnown for one720p, 1080p
Sensor typeKnown for oneCMOS
Optical sensor sizeKnown for one25.4 / 2.8 mm (1 / 2.8")
Maximum frame rateKnown for one30 fps
Viewing angle, horizontalKnown for one86.4°
Viewing angle, verticalKnown for one46.2°
Audio1 differ
Built-in speaker(s)YesYes
Noise-cancelingKnown for oneYes
Voice codecsDiffersG.711G.711a, G.711u, PCM
Number of speakersKnown for one1
Design2 differ
Product colourDiffersBlackStainless steel
IK codeKnown for oneIK08
International Protection (IP) codeKnown for oneIP65
Control typeKnown for oneButtons
Housing materialKnown for oneStainless steel
Placement supportedDiffersHorizontalVertical
Proper useKnown for oneOutdoor
Network1 differ
Ethernet interface typeFast EthernetFast Ethernet
Ethernet LAN data rates10,100 Mbit/s10,100 Mbit/s
Ethernet LAN (RJ-45) portsKnown for one1
Cabling technologyKnown for one10/100Base-T(X)
Power over Ethernet (PoE)Known for oneYes
Supported network protocolsDiffersTCP/IPRTSP, DNS, P2P, UPnP, RTP, RTMP, SIP, SSH, HTTP/HTTPS, ONVIF
Softwareidentical
Operating system installedKnown for oneLinux
Power2 differ
Outdoor unit power typeKnown for oneDC
AC adapter output voltageKnown for one12 V
AC adapter output currentKnown for one2 A
Power consumptionKnown for one200 mA
Power consumption (typical)Differs7 W18 W
Power consumption (standby)Differs1 W5 W
Indoor unit power typeKnown for oneDC
Operational conditionsidentical
Operating relative humidity (H-H)Known for one10 - 90%
Operating temperature (T-T)Known for one-30 - 60 °C
Weight & dimensions3 differ
WidthDiffers221.5 mm143 mm
DepthDiffers21.5 mm54 mm
HeightDiffers119.6 mm406 mm
WeightKnown for one350 g
Packaging data1 differ
Outdoor unit includedDiffersNoYes
Package weightKnown for one2.05 kg
Indoor unit includedKnown for oneYes
Logistics dataidentical
Quantity per packKnown for one1 pc(s)
Minimum order quantityKnown for one1 pc(s)
Technical detailsidentical
Compliance certificatesKnown for oneCE, Federal Communications Commission (FCC)
Sustainability complianceKnown for oneYes

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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