Product comparison · 2 video intercom systems

Dahua Technology VTO3211D-P1-S2 video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

28specifications compared
14differ
14identical
35known for one product only

Key differences

The Dahua Technology VTO3211D-P1-S2 video intercom system has 34° more viewing angle, horizontal than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (129° vs 95°). The Dahua Technology VTO3211D-P1-S2 video intercom system has 24° more viewing angle, vertical than the Dahua Technology VTO6521K-S2 IP Apartment Door Station (74° vs 50°). The Dahua Technology VTO6521K-S2 IP Apartment Door Station has 1 A more AC adapter output current than the Dahua Technology VTO3211D-P1-S2 video intercom system (2 A vs 1 A). Voice codecs: G.711Mu, G.711u, PCM on the Dahua Technology VTO3211D-P1-S2 video intercom system, G.711a, G.711u, PCM on the Dahua Technology VTO6521K-S2 IP Apartment Door Station. Product colour: Black, Grey on the Dahua Technology VTO3211D-P1-S2 video intercom system, Stainless steel on the Dahua Technology VTO6521K-S2 IP Apartment Door Station.

Viewing angle, horizontal
- VTO3211D-P1-S2 video intercom system:129°
- VTO6521K-S2 IP Apartment Door Station:95°
Viewing angle, vertical
- VTO3211D-P1-S2 video intercom system:74°
- VTO6521K-S2 IP Apartment Door Station:50°
Voice codecs
- VTO3211D-P1-S2 video intercom system:G.711Mu, G.711u, PCM
- VTO6521K-S2 IP Apartment Door Station:G.711a, G.711u, PCM
Product colour
- VTO3211D-P1-S2 video intercom system:Black, Grey
- VTO6521K-S2 IP Apartment Door Station:Stainless steel
Operating system installed
- VTO3211D-P1-S2 video intercom system:Embedded LINUX
- VTO6521K-S2 IP Apartment Door Station:Linux
AC adapter output current
- VTO3211D-P1-S2 video intercom system:1 A
- VTO6521K-S2 IP Apartment Door Station:2 A
Power consumption (typical)
- VTO3211D-P1-S2 video intercom system:7 W
- VTO6521K-S2 IP Apartment Door Station:18 W
Power consumption (standby)
- VTO3211D-P1-S2 video intercom system:1 W
- VTO6521K-S2 IP Apartment Door Station:5 W

Side by side

Differences highlightedShow differences only

Comparison of VTO3211D-P1-S2, VTO6521K-S2
63 specifications	A Dahua Technology VTO3211D-P1-S2 video intercom system Model VTO3211D-P1-S2 View product	B Dahua Technology VTO6521K-S2 IP Apartment Door Station Model VTO6521K-S2 View product
Featuresidentical
Connectivity technology	Wired	Wired
ColourKnown for one	No	Unknown — not stated by the source
Maximum number of cameras supportedKnown for one	1	Unknown — not stated by the source
Speakerphone	Yes	Yes
RFID readerKnown for one	Yes	Unknown — not stated by the source
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Echo cancellation	Yes	Yes
Motion detection functionKnown for one	Yes	Unknown — not stated by the source
Number of buttonsKnown for one	2 buttons	Unknown — not stated by the source
VoIP protocolsKnown for one	SIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDP	Unknown — not stated by the source
Wall mountableKnown for one	Yes	Unknown — not stated by the source
Displayidentical
Video formats supportedKnown for one	H.264	Unknown — not stated by the source
Display diagonalKnown for one	Unknown — not stated by the source	10.9 cm (4.3")
Display resolutionKnown for one	Unknown — not stated by the source	800 x 480 pixels
Night visionidentical
Night visionKnown for one	Yes	Unknown — not stated by the source
LED typeKnown for one	IR	Unknown — not stated by the source
Camera2 differ
Megapixel (approx.)	2 MP	2 MP
Sensor type	CMOS	CMOS
Optical sensor size	25.4 / 2.8 mm (1 / 2.8")	25.4 / 2.8 mm (1 / 2.8")
Field of view (FOV) angleKnown for one	147°	Unknown — not stated by the source
Viewing angle, horizontalDiffers	129°	95°
Viewing angle, verticalDiffers	74°	50°
Supported video modesKnown for one	Unknown — not stated by the source	720p, 1080p
Maximum frame rateKnown for one	Unknown — not stated by the source	25 fps
Audio1 differ
Built-in speaker(s)	Yes	Yes
Voice codecsDiffers	G.711Mu, G.711u, PCM	G.711a, G.711u, PCM
Noise-cancelingKnown for one	Unknown — not stated by the source	Yes
Design1 differ
Product colourDiffers	Black, Grey	Stainless steel
IK codeKnown for one	IK08	Unknown — not stated by the source
International Protection (IP) code	IP65	IP65
Outdoor unit housing materialKnown for one	Aluminium	Unknown — not stated by the source
Control typeKnown for one	Buttons	Unknown — not stated by the source
Housing materialKnown for one	Aluminium, Metal, Polycarbonate (PC)	Unknown — not stated by the source
Placement supportedKnown for one	Vertical	Unknown — not stated by the source
Proper useKnown for one	Outdoor	Unknown — not stated by the source
Network1 differ
Ethernet interface type	Fast Ethernet	Fast Ethernet
Ethernet LAN data rates	10,100 Mbit/s	10,100 Mbit/s
Ethernet LAN (RJ-45) ports	1	1
Cabling technologyKnown for one	10/100Base-T(X)	Unknown — not stated by the source
Power over Ethernet (PoE)Known for one	Yes	Unknown — not stated by the source
Supported network protocolsDiffers	SIP, P2P, IPv4, FTP, UPnP, DNS, DDNS, RTSP, RTP, TCP, UDP	FTP;RTMP;HTTP/HTTPS;DNS;RTSP;SSH;ONVIF;SIP;RTP
Software1 differ
Operating system installedDiffers	Embedded LINUX	Linux
Power3 differ
Outdoor unit power typeKnown for one	DC	Unknown — not stated by the source
AC adapter output voltage	12 V	12 V
AC adapter output currentDiffers	1 A	2 A
Power consumption (typical)Differs	7 W	18 W
Power consumption (standby)Differs	1 W	5 W
Indoor unit power typeKnown for one	Unknown — not stated by the source	DC/PoE
Operational conditions1 differ
Operating relative humidity (H-H)Differs	10 - 95%	0 - 90%
Operating temperature (T-T)	-30 - 60 °C	-30 - 60 °C
Weight & dimensions4 differ
WidthDiffers	101 mm	406 mm
DepthDiffers	31 mm	143 mm
HeightDiffers	181 mm	54 mm
WeightDiffers	660 g	2.3 kg
Packaging dataidentical
Indoor unit included	Yes	Yes
Outdoor unit includedKnown for one	Yes	Unknown — not stated by the source
Logistics dataidentical
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Minimum order quantityKnown for one	1 pc(s)	Unknown — not stated by the source
Technical detailsidentical
Compliance certificatesKnown for one	CE, Federal Communications Commission (FCC)	Unknown — not stated by the source
Sustainability complianceKnown for one	Yes	Unknown — not stated by the source
CertificationKnown for one	Unknown — not stated by the source	CE
Indoor unitidentical
Alarm input channelsKnown for one	Unknown — not stated by the source	2
RS-485 portsKnown for one	Unknown — not stated by the source	1

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.

Dahua Technology VTO3211D-P1-S2 video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

Key differences

Side by side

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