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Product comparison · 2 video intercom systems

Dahua Technology KTW02 video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

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  • 27specifications compared
  • 14differ
  • 13identical
  • 43known for one product only

Key differences

The Dahua Technology KTW02 video intercom system has 5 fps more maximum frame rate than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (30 fps vs 25 fps). The Dahua Technology KTW02 video intercom system has 15° more viewing angle, horizontal than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (110° vs 95°). The Dahua Technology KTW02 video intercom system has 12° more viewing angle, vertical than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (62° vs 50°). Connectivity technology: Wired & Wireless on the Dahua Technology KTW02 video intercom system, Wired on the Dahua Technology VTO6521K-S2 IP Apartment Door Station. Display diagonal: 17.8 cm (7") on the Dahua Technology KTW02 video intercom system, 10.9 cm (4.3") on the Dahua Technology VTO6521K-S2 IP Apartment Door Station.

  • Connectivity technology
    • Wired & Wireless
    • Wired
  • Display diagonal
    • 17.8 cm (7")
    • 10.9 cm (4.3")
  • Display resolution
    • 1024 x 600 pixels
    • 800 x 480 pixels
  • Maximum frame rate
    • 30 fps
    • 25 fps
  • Viewing angle, horizontal
    • 110°
    • 95°
  • Viewing angle, vertical
    • 62°
    • 50°
  • Product colour
    • Light grey
    • Stainless steel
  • AC adapter output voltage
    • 33 V
    • 12 V

Side by side

Differences highlightedShow differences only
70 specifications
A

Dahua Technology

KTW02 video intercom system

Model KTW02

View product
B

Dahua Technology

VTO6521K-S2 IP Apartment Door Station

Model VTO6521K-S2

View product
Features1 differ
Connectivity technologyDiffersWired & WirelessWired
ColourKnown for oneNo
Maximum number of cameras supportedKnown for one1
SpeakerphoneYesYes
RFID readerKnown for oneYes
Fingerprint readerKnown for oneYes
Automatic gain controlKnown for oneYes
Built-in microphoneKnown for oneYes
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 mountableKnown for oneYes
Echo cancellationKnown for oneYes
Display2 differ
Display diagonalDiffers17.8 cm (7")10.9 cm (4.3")
Display technologyKnown for oneTFT
Display resolutionDiffers1024 x 600 pixels800 x 480 pixels
TouchscreenKnown for oneYes
Video formats supportedKnown for oneH.264, H.265
Night visionidentical
Night visionKnown for oneYes
LED typeKnown for oneIR
Camera3 differ
Megapixel (approx.)2 MP2 MP
Supported video modes720p, 1080p720p, 1080p
Sensor typeCMOSCMOS
Optical sensor size25.4 / 2.8 mm (1 / 2.8")25.4 / 2.8 mm (1 / 2.8")
Maximum frame rateDiffers30 fps25 fps
Viewing angle, horizontalDiffers110°95°
Viewing angle, verticalDiffers62°50°
Audioidentical
Built-in speaker(s)YesYes
Noise-cancelingYesYes
Voice codecsG.711a, G.711u, PCMG.711a, G.711u, PCM
Design1 differ
Product colourDiffersLight greyStainless steel
International Protection (IP) codeIP65IP65
Control typeKnown for oneTouch
Housing materialKnown for oneAcrylonitrile butadiene styrene (ABS), Polycarbonate (PC)
Placement supportedKnown for oneVertical
Proper useKnown for oneOutdoor
Storageidentical
Memory card slotKnown for oneYes
Compatible memory cardsKnown for oneMicroSD (TransFlash), SD
Maximum memory card sizeKnown for one256 GB
Network1 differ
Ethernet interface typeFast EthernetFast Ethernet
Ethernet LAN data rates10,100 Mbit/s10,100 Mbit/s
Ethernet LAN (RJ-45) ports11
Wi-FiKnown for oneYes
Wi-Fi standardsKnown for one802.11b, 802.11g, Wi-Fi 4 (802.11n)
Cabling technologyKnown for one10/100Base-T(X)
Power over Ethernet (PoE)Known for oneYes
Supported network protocolsDiffersRTSP, DNS, P2P, UPnP, RTP, RTMP, SIP, SSH, HTTP/HTTPS, ONVIFFTP;RTMP;HTTP/HTTPS;DNS;RTSP;SSH;ONVIF;SIP;RTP
Power4 differ
Outdoor unit power typeKnown for oneDC/PoE
AC adapter output voltageDiffers33 V12 V
AC adapter output currentDiffers1 A2 A
Power consumption (typical)Differs6 W18 W
Power consumption (standby)Differs3.5 W5 W
Indoor unit power typeKnown for oneDC/PoE
Operational conditions2 differ
Operating relative humidity (H-H)Differs10 - 90%0 - 90%
Operating temperature (T-T)Differs-40 - 60 °C-30 - 60 °C
Weight & dimensionsidentical
Door station dimensions (WxDxH)Known for one160 x 50 x 30 mm
WidthKnown for one406 mm
DepthKnown for one143 mm
HeightKnown for one54 mm
WeightKnown for one2.3 kg
Packaging dataidentical
Indoor unit includedYesYes
Outdoor 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
CertificationKnown for oneCE
Indoor unitidentical
Alarm input channelsKnown for one2
RS-485 portsKnown for one1
Softwareidentical
Operating system installedKnown for oneLinux

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