Product comparison · 2 video intercom systems

Dahua Technology DHI-VTO3211D-P4-S2 video intercom system vs Dahua Technology VTH2421FB video intercom system

17specifications compared
7differ
10identical
35known for one product only

Key differences

The Dahua Technology VTH2421FB video intercom system has 120.5 mm more width than the Dahua Technology DHI-VTO3211D-P4-S2 video intercom system (221.5 mm vs 101 mm). The Dahua Technology DHI-VTO3211D-P4-S2 video intercom system has 8.5 mm more depth than the Dahua Technology VTH2421FB video intercom system (30 mm vs 21.5 mm). The Dahua Technology DHI-VTO3211D-P4-S2 video intercom system has 62.4 mm more height than the Dahua Technology VTH2421FB video intercom system (182 mm vs 119.6 mm). Only the Dahua Technology DHI-VTO3211D-P4-S2 video intercom system has outdoor unit included. Product colour: Grey on the Dahua Technology DHI-VTO3211D-P4-S2 video intercom system, Black on the Dahua Technology VTH2421FB video intercom system.

Product colour
- DHI-VTO3211D-P4-S2 video intercom system:Grey
- VTH2421FB video intercom system:Black
Width
- DHI-VTO3211D-P4-S2 video intercom system:101 mm
- VTH2421FB video intercom system:221.5 mm
Depth
- DHI-VTO3211D-P4-S2 video intercom system:30 mm
- VTH2421FB video intercom system:21.5 mm
Height
- DHI-VTO3211D-P4-S2 video intercom system:182 mm
- VTH2421FB video intercom system:119.6 mm
Weight
- DHI-VTO3211D-P4-S2 video intercom system:800 g
- VTH2421FB video intercom system:350 g
Outdoor unit included
- DHI-VTO3211D-P4-S2 video intercom system:Yes
- VTH2421FB video intercom system:No

Side by side

Differences highlightedShow differences only

Comparison of DHI-VTO3211D-P4-S2, VTH2421FB
52 specifications	A Dahua Technology DHI-VTO3211D-P4-S2 video intercom system Model DHI-VTO3211D-P4-S2 View product	B Dahua Technology VTH2421FB video intercom system Model VTH2421FB View product
Featuresidentical
Connectivity technology	Wired	Wired
Colour	Yes	Yes
Speakerphone	Yes	Yes
RFID readerKnown for one	Yes	Unknown — not stated by the source
Built-in microphone	Yes	Yes
Number of buttonsKnown for one	4 buttons	Unknown — not stated by the source
Video codecsKnown for one	H.264	Unknown — not stated by the source
Wall mountable	Yes	Yes
Number of displays supportedKnown for one	Unknown — not stated by the source	1
Night visionidentical
Night visionKnown for one	Yes	Unknown — not stated by the source
Cameraidentical
Megapixel (approx.)Known for one	2 MP	Unknown — not stated by the source
Sensor typeKnown for one	CMOS	Unknown — not stated by the source
Optical sensor sizeKnown for one	25.4 / 2.8 mm (1 / 2.8")	Unknown — not stated by the source
Field of view (FOV) angleKnown for one	147°	Unknown — not stated by the source
Viewing angle, horizontalKnown for one	129°	Unknown — not stated by the source
Viewing angle, verticalKnown for one	74°	Unknown — not stated by the source
Audioidentical
Built-in speaker(s)	Yes	Yes
Voice codecs	G.711	G.711
Number of speakersKnown for one	Unknown — not stated by the source	1
Design1 differ
Product colourDiffers	Grey	Black
IK codeKnown for one	IK08	Unknown — not stated by the source
International Protection (IP) codeKnown for one	IP65	Unknown — not stated by the source
Outdoor unit housing materialKnown for one	Zinc alloy	Unknown — not stated by the source
Control typeKnown for one	Buttons	Unknown — not stated by the source
Proper useKnown for one	Outdoor	Unknown — not stated by the source
Placement supportedKnown for one	Unknown — not stated by the source	Horizontal
Network1 differ
Ethernet interface type	Fast Ethernet	Fast Ethernet
Ethernet LAN data rates	10,100 Mbit/s	10,100 Mbit/s
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; DNS; RTSP; RTP; TCP; UDP	TCP/IP
Softwareidentical
Operating system installedKnown for one	Linux	Unknown — not stated by the source
Poweridentical
Outdoor unit power typeKnown for one	DC	Unknown — not stated by the source
Indoor unit power typeKnown for one	Unknown — not stated by the source	DC
Power consumption (typical)Known for one	Unknown — not stated by the source	7 W
Power consumption (standby)Known for one	Unknown — not stated by the source	1 W
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	10 - 95%	Unknown — not stated by the source
Operating temperature (T-T)Known for one	-40 - 60 °C	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	101 mm	221.5 mm
DepthDiffers	30 mm	21.5 mm
HeightDiffers	182 mm	119.6 mm
WeightDiffers	800 g	350 g
Packaging data1 differ
Indoor unit included	Yes	Yes
Outdoor unit includedDiffers	Yes	No
Package weightKnown for one	660 g	Unknown — not stated by the source
Displayidentical
Display diagonalKnown for one	Unknown — not stated by the source	17.8 cm (7")
Display technologyKnown for one	Unknown — not stated by the source	LCD
Display resolutionKnown for one	Unknown — not stated by the source	1024 x 600 pixels
Backlight displayKnown for one	Unknown — not stated by the source	Yes
TouchscreenKnown for one	Unknown — not stated by the source	Yes
Touchscreen typeKnown for one	Unknown — not stated by the source	Capacitive
Video formats supportedKnown for one	Unknown — not stated by the source	H.264

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 DHI-VTO3211D-P4-S2 video intercom system vs Dahua Technology VTH2421FB video intercom system

Key differences

Side by side

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