Product comparison · 2 video intercom systems

Dahua Technology VTH2421FW-P video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

22specifications compared
14differ
8identical
25known for one product only

Key differences

The Dahua Technology VTO6521K-S2 IP Apartment Door Station has 12 W more power consumption (typical) than the Dahua Technology VTH2421FW-P video intercom system (18 W vs 6 W). The Dahua Technology VTO6521K-S2 IP Apartment Door Station has 1 W more power consumption (standby) than the Dahua Technology VTH2421FW-P video intercom system (5 W vs 4 W). The Dahua Technology VTO6521K-S2 IP Apartment Door Station has 184.5 mm more width than the Dahua Technology VTH2421FW-P video intercom system (406 mm vs 221.5 mm). Display diagonal: 17.8 cm (7") on the Dahua Technology VTH2421FW-P video intercom system, 10.9 cm (4.3") on the Dahua Technology VTO6521K-S2 IP Apartment Door Station. Display resolution: 1024 x 600 pixels on the Dahua Technology VTH2421FW-P video intercom system, 800 x 480 pixels on the Dahua Technology VTO6521K-S2 IP Apartment Door Station.

Display diagonal
- VTH2421FW-P video intercom system:17.8 cm (7")
- VTO6521K-S2 IP Apartment Door Station:10.9 cm (4.3")
Display resolution
- VTH2421FW-P video intercom system:1024 x 600 pixels
- VTO6521K-S2 IP Apartment Door Station:800 x 480 pixels
Product colour
- VTH2421FW-P video intercom system:Black, White
- VTO6521K-S2 IP Apartment Door Station:Stainless steel
Indoor unit power type
- VTH2421FW-P video intercom system:DC
- VTO6521K-S2 IP Apartment Door Station:DC/PoE
Power consumption (typical)
- VTH2421FW-P video intercom system:6 W
- VTO6521K-S2 IP Apartment Door Station:18 W
Power consumption (standby)
- VTH2421FW-P video intercom system:4 W
- VTO6521K-S2 IP Apartment Door Station:5 W
Operating relative humidity (H-H)
- VTH2421FW-P video intercom system:10 - 95%
- VTO6521K-S2 IP Apartment Door Station:0 - 90%
Operating temperature (T-T)
- VTH2421FW-P video intercom system:-10 - 55 °C
- VTO6521K-S2 IP Apartment Door Station:-30 - 60 °C

Side by side

Differences highlightedShow differences only

Comparison of VTH2421FW-P, VTO6521K-S2
47 specifications	A Dahua Technology VTH2421FW-P video intercom system Model VTH2421FW-P View product	B Dahua Technology VTO6521K-S2 IP Apartment Door Station Model VTO6521K-S2 View product
Featuresidentical
Connectivity technology	Wired	Wired
Speakerphone	Yes	Yes
Echo cancellationKnown for one	Unknown — not stated by the source	Yes
ColourKnown for one	Yes	Unknown — not stated by the source
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Video codecsKnown for one	H.264	Unknown — not stated by the source
Wall mountableKnown for one	Yes	Unknown — not stated by the source
Display2 differ
Display diagonalDiffers	17.8 cm (7")	10.9 cm (4.3")
Display resolutionDiffers	1024 x 600 pixels	800 x 480 pixels
Display technologyKnown for one	LCD/TFT	Unknown — not stated by the source
TouchscreenKnown for one	Yes	Unknown — not stated by the source
Touchscreen typeKnown for one	Capacitive	Unknown — not stated by the source
Cameraidentical
Megapixel (approx.)Known for one	Unknown — not stated by the source	2 MP
Supported video modesKnown for one	Unknown — not stated by the source	720p, 1080p
Sensor typeKnown for one	Unknown — not stated by the source	CMOS
Optical sensor sizeKnown for one	Unknown — not stated by the source	25.4 / 2.8 mm (1 / 2.8")
Maximum frame rateKnown for one	Unknown — not stated by the source	25 fps
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	95°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	50°
Audioidentical
Built-in speaker(s)	Yes	Yes
Noise-cancelingKnown for one	Unknown — not stated by the source	Yes
Voice codecs	G.711a, G.711u, PCM	G.711a, G.711u, PCM
Speaker powerKnown for one	1.5 W	Unknown — not stated by the source
Design1 differ
Product colourDiffers	Black, White	Stainless steel
International Protection (IP) codeKnown for one	Unknown — not stated by the source	IP65
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
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
Supported network protocolsDiffers	TCP/IP	FTP;RTMP;HTTP/HTTPS;DNS;RTSP;SSH;ONVIF;SIP;RTP
Networking standardsKnown for one	IEEE 802.3af	Unknown — not stated by the source
Softwareidentical
Operating system installedKnown for one	Unknown — not stated by the source	Linux
Power3 differ
Indoor unit power typeDiffers	DC	DC/PoE
AC adapter output voltageKnown for one	Unknown — not stated by the source	12 V
AC adapter output currentKnown for one	Unknown — not stated by the source	2 A
Power consumption (typical)Differs	6 W	18 W
Power consumption (standby)Differs	4 W	5 W
Operational conditions2 differ
Operating relative humidity (H-H)Differs	10 - 95%	0 - 90%
Operating temperature (T-T)Differs	-10 - 55 °C	-30 - 60 °C
Weight & dimensions4 differ
WidthDiffers	221.5 mm	406 mm
DepthDiffers	21.5 mm	143 mm
HeightDiffers	119.6 mm	54 mm
WeightDiffers	350 g	2.3 kg
Packaging dataidentical
Indoor unit included	Yes	Yes
Outdoor unit includedKnown for one	No	Unknown — not stated by the source
Technical details1 differ
CertificationDiffers	EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 + A2:2013 IEC 60950-1:2005 (Second Edition); Am1:2009 + Am2:2013 FCC CFR 47 Part 15 subpart B EN 55032:2015; EN 610003 2:2014; EN 61000 3 3:2013; EN 55024:2010/A1:2015; EN 55035:2017; EN 50130 4:2011/A1:2014	CE

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 VTH2421FW-P video intercom system vs Dahua Technology VTO6521K-S2 IP Apartment Door Station

Key differences

Side by side

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