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Product comparison · 2 video intercom systems

Dahua Technology VTH2421FB video intercom system vs Dahua Technology VTO6521H-D video intercom system

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  • 23specifications compared
  • 14differ
  • 9identical
  • 44known for one product only

Key differences

The Dahua Technology VTO6521H-D 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 VTO6521H-D 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 76 mm more width than the Dahua Technology VTO6521H-D video intercom system (221.5 mm vs 145.5 mm). Only the Dahua Technology VTO6521H-D video intercom system has outdoor unit included. Display diagonal: 17.8 cm (7") on the Dahua Technology VTH2421FB video intercom system, 10.9 cm (4.3") on the Dahua Technology VTO6521H-D video intercom system.

  • Display diagonal
    • 17.8 cm (7")
    • 10.9 cm (4.3")
  • Display technology
    • LCD
    • IPS
  • Display resolution
    • 1024 x 600 pixels
    • 800 x 480 pixels
  • Voice codecs
    • G.711
    • G.711u
  • Product colour
    • Black
    • Silver
  • Placement supported
    • Horizontal
    • Vertical
  • Power consumption (typical)
    • 7 W
    • 18 W
  • Power consumption (standby)
    • 1 W
    • 5 W

Side by side

Differences highlightedShow differences only
67 specifications
A

Dahua Technology

VTH2421FB video intercom system

Model VTH2421FB

View product
B

Dahua Technology

VTO6521H-D video intercom system

Model VTO6521H-D

View product
Featuresidentical
Maximum number of cameras supportedKnown for one1
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 oneSIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDP
ColourKnown for oneYes
Display3 differ
Display diagonalDiffers17.8 cm (7")10.9 cm (4.3")
Display technologyDiffersLCDIPS
Display resolutionDiffers1024 x 600 pixels800 x 480 pixels
Backlight displayKnown for oneYes
TouchscreenKnown 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 / 2.7 mm (1 / 2.7")
Maximum frame rateKnown for one30 fps
Viewing angle, horizontalKnown for one113.79°
Viewing angle, verticalKnown for one61.5°
Audio1 differ
Noise-cancelingKnown for oneYes
Voice codecsDiffersG.711G.711u
Number of speakersKnown for one1
Design2 differ
Product colourDiffersBlackSilver
International Protection (IP) codeKnown for oneIP65
Control typeKnown for oneButtons, Touch
Housing materialKnown for oneAcrylonitrile butadiene styrene (ABS), Polycarbonate (PC)
Placement supportedDiffersHorizontalVertical
Proper useKnown for oneOutdoor
Storageidentical
Memory card slotKnown for oneYes
Maximum memory card sizeKnown for one4 GB
Included memory card sizeKnown for one1 GB
Network1 differ
Ethernet LAN (RJ-45) portsKnown for one1
Cabling technologyKnown for one10/100Base-T(X)
Power over Ethernet (PoE)Known for oneYes
Supported network protocolsDiffersTCP/IPSIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDP
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 one100 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 & dimensions4 differ
WidthDiffers221.5 mm145.5 mm
DepthDiffers21.5 mm43.5 mm
HeightDiffers119.6 mm388.5 mm
WeightDiffers350 g1 kg
Packaging data1 differ
Outdoor unit includedDiffersNoYes
Package weightKnown for one1.29 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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