All categories
Phones & WearablesView all 31

Departments

Phones & WearablesComputers & TabletsComponents & StorageNetworkingPrinting & OfficePower & ChargingTV, Audio & VideoGaming, Toys & RobotsKitchen AppliancesHome AppliancesPersonal Care & HealthSmart Home & SecurityCar & MobilityTools & GardenCameras & Photo

Shopping country

Browse

All categoriesCompare products

Product comparison · 2 video intercom systems

Dahua Technology VTO6521H video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

Add a product
  • 32specifications compared
  • 13differ
  • 19identical
  • 33known for one product only

Key differences

The Dahua Technology VTO6521H 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 VTO6521H 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 VTO6521H 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 VTO6521H 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 VTO6521H 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
  • Indoor unit power type
    • DC
    • DC/PoE
  • Operating relative humidity (H-H)
    • 10 - 90%
    • 0 - 90%

Side by side

Differences highlightedShow differences only
65 specifications
A

Dahua Technology

VTO6521H video intercom system

Model VTO6521H

View product
B

Dahua Technology

VTO6521K-S2 IP Apartment Door Station

Model VTO6521K-S2

View product
Featuresidentical
Number of displays supportedKnown for one1
Maximum number of cameras supportedKnown for one1
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 technologyKnown for oneIPS
Video formats supportedKnown for oneH.264
Camera4 differ
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
Voice codecsDiffersG.711uG.711a, G.711u, PCM
Design1 differ
Product colourDiffersSilverStainless steel
Control typeKnown for oneButtons, Touch
Housing materialKnown for oneAcrylonitrile butadiene styrene (ABS), Polycarbonate (PC)
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
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
Power1 differ
Indoor unit power typeDiffersDCDC/PoE
Power consumptionKnown for one100 mA
Operational conditions1 differ
Operating relative humidity (H-H)Differs10 - 90%0 - 90%
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.

More video intercom system comparisons

All video intercom system comparisons