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Product comparison · 2 video intercom systems

Dahua Technology VTO6521F video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

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  • 31specifications compared
  • 12differ
  • 19identical
  • 35known for one product only

Key differences

The Dahua Technology VTO6521F 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 VTO6521F video intercom system has 18.79° more viewing angle, horizontal than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (113.79° vs 95°). The Dahua Technology VTO6521F video intercom system has 11.5° more viewing angle, vertical than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (61.5° vs 50°). Optical sensor size: 25.4 / 2.7 mm (1 / 2.7") on the Dahua Technology VTO6521F video intercom system, 25.4 / 2.8 mm (1 / 2.8") on the Dahua Technology VTO6521K-S2 IP Apartment Door Station. Voice codecs: G.711u on the Dahua Technology VTO6521F video intercom system, G.711a, G.711u, PCM on the Dahua Technology VTO6521K-S2 IP Apartment Door Station.

  • Optical sensor size
    • 25.4 / 2.7 mm (1 / 2.7")
    • 25.4 / 2.8 mm (1 / 2.8")
  • Maximum frame rate
    • 30 fps
    • 25 fps
  • Viewing angle, horizontal
    • 113.79°
    • 95°
  • Viewing angle, vertical
    • 61.5°
    • 50°
  • Voice codecs
    • G.711u
    • G.711a, G.711u, PCM
  • Product colour
    • Silver
    • Stainless steel
  • Operating relative humidity (H-H)
    • 10 - 90%
    • 0 - 90%
  • Width
    • 145 mm
    • 406 mm

Side by side

Differences highlightedShow differences only
66 specifications
A

Dahua Technology

VTO6521F video intercom system

Model VTO6521F

View product
B

Dahua Technology

VTO6521K-S2 IP Apartment Door Station

Model VTO6521K-S2

View product
Featuresidentical
Connectivity technologyWiredWired
Number of displays supportedKnown for one1
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 oneSIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDP
Wall mountableKnown for oneYes
Echo cancellationKnown for oneYes
Displayidentical
Display diagonal10.9 cm (4.3")10.9 cm (4.3")
Display technologyKnown for oneIPS
Display resolution800 x 480 pixels800 x 480 pixels
Video formats supportedKnown for oneH.264
Camera4 differ
Megapixel (approx.)2 MP2 MP
Supported video modes720p, 1080p720p, 1080p
Sensor typeCMOSCMOS
Optical sensor sizeDiffers25.4 / 2.7 mm (1 / 2.7")25.4 / 2.8 mm (1 / 2.8")
Maximum frame rateDiffers30 fps25 fps
Viewing angle, horizontalDiffers113.79°95°
Viewing angle, verticalDiffers61.5°50°
Audio1 differ
Built-in speaker(s)YesYes
Noise-cancelingYesYes
Voice codecsDiffersG.711uG.711a, G.711u, PCM
Design1 differ
Product colourDiffersSilverStainless steel
IK codeKnown for oneIK07
International Protection (IP) codeIP65IP65
Control typeKnown for oneButtons
Housing materialKnown for oneAluminium
Placement supportedKnown for oneVertical
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 interface typeFast EthernetFast Ethernet
Ethernet LAN data rates10,100 Mbit/s10,100 Mbit/s
Ethernet LAN (RJ-45) ports11
Cabling technologyKnown for one10/100Base-T(X)
Power over Ethernet (PoE)Known for oneYes
Supported network protocolsDiffersSIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDPFTP;RTMP;HTTP/HTTPS;DNS;RTSP;SSH;ONVIF;SIP;RTP
Softwareidentical
Operating system installedLinuxLinux
Poweridentical
Outdoor unit power typeKnown for oneDC
AC adapter output voltage12 V12 V
AC adapter output current2 A2 A
Power consumption (typical)18 W18 W
Power consumption (standby)5 W5 W
Indoor unit power typeKnown for oneDC/PoE
Operational conditions1 differ
Operating relative humidity (H-H)Differs10 - 90%0 - 90%
Operating temperature (T-T)-30 - 60 °C-30 - 60 °C
Weight & dimensions4 differ
WidthDiffers145 mm406 mm
DepthDiffers41.9 mm143 mm
HeightDiffers389 mm54 mm
WeightDiffers1.4 kg2.3 kg
Packaging dataidentical
Outdoor unit includedKnown for oneYes
Package weightKnown for one1.68 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
CertificationKnown for oneCE
Indoor unitidentical
Alarm input channelsKnown for one2
RS-485 portsKnown for one1

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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