DS-2CD3746G3T-IZSU(Y)

Lens
Lens TypeVarifocal lens, motorized lens, 2.7 to 13.5 mm and 7 to 35 mm optional
Focal Length & FOV
2.7 to 13.5 mm, horizontal FOV 105.2° to 34.5°, vertical FOV 56.0° to 19.3°, diagonal FOV 125.6° to 39.4°

7 to 35 mm, horizontal FOV 28.6° to 10.5°, vertical FOV 16.0° to 6.0°, diagonal FOV 33.1° to 12.1°
Lens Mount
2.7 to 13.5 mm：Ø14

7 to 35 mm：Integrated
Iris TypeAuto-iris
Aperture
2.7 to 13.5 mm：Max.F1.2

7 to 35 mm：Max.F1.4
Depth of Field1 m to ∞

Video
Main Stream
50 Hz: 25 fps (2688 × 1520)

60 Hz: 30 fps (2688 × 1520)

50 Hz: 50 fps (1920 × 1080, 1280 × 720)

60 Hz: 60 fps (1920 × 1080, 1280 × 720)
Sub-Stream
50 Hz: 25 fps (1280 × 720, 640 × 480, 640 × 360)

60 Hz: 30 fps (1280 × 720, 640 × 480, 640 × 360)
Third Stream
50 Hz: 10 fps (1920 × 1080, 1280 × 720, 640 × 480, 640 × 360)

60 Hz: 10 fps (1920 × 1080, 1280 × 720, 640 × 480, 640 × 360)

*Third stream is supported under certain settings.
Fourth Stream
50 Hz: 10 fps (1280 × 720, 640 × 480, 640 × 360)

60 Hz: 10 fps (1280 × 720, 640 × 480, 640 × 360)

*Fourth stream is supported under certain settings.
Video Compression
Main stream: H.265/H.264/H.264+/H.265+,

Sub-stream: H.265/H.264/MJPEG,

Third stream: H.265/H.264,

Fourth stream: H.265/H.264/MJPEG
Video Bit Rate32 Kbps to 8 Mbps
H.264 TypeBaseline Profile,Main Profile,High Profile
H.265 TypeMain Profile
Bit Rate ControlCBR,VBR
Scalable Video Coding (SVC)H.264 and H.265 encoding
Region of Interest (ROI)5 fixed regions for main stream and sub-stream
e-PTZSupport Patrol and Auto Tracking settings

Audio
Audio TypeMono sound
Audio CompressionG.711/G.722.1/G.726/MP2L2/PCM/MP3/AAC-LC
Audio Bit Rate64 Kbps (G.711ulaw/G.711alaw)/16 Kbps (G.722.1)/16 Kbps (G.726)/32 to 192 Kbps (MP2L2)/8 to 320 Kbps (MP3)/16 to 64 Kbps (AAC-LC)
Environment Noise FilteringYes
Audio Sampling Rate8 kHz/16 kHz/32 kHz/48 kHz

Network
ProtocolsTCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, RTCP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SNMP, WebSocket, WebSockets, SRTP, SFTP
Simultaneous Live ViewUp to 6 channels
APIISAPI,SDK,ISUP,ONVIF (Profile S, Profile T, Profile G, Profile M)
User/Host
Up to 32 users

3 user levels: administrator, operator, and user
SecurityPassword protection, complicated password, HTTPS encryption, 802.1X authentication (EAP-TLS, EAP-LEAP, EAP-MD5), watermark, IP address filter, basic and digest authentication for HTTP/HTTPS, WSSE and digest authentication for Open Network Video Interface, RTP/RTSP over HTTPS, control timeout settings, security audit log, TLS 1.1/1.2/1.3, host authentication (MAC address)
Network StorageNAS (NFS, SMB/CIFS),Auto Network Replenishment (ANR)
ClientiVMS-4200,Hik-Connect,Hik-Central
Web Browser
Plug-in free live view: Chrome 91+, Firefox 88+, Edge 91+, Safari 13+

Local service: Chrome 91+, Firefox 88+, Edge 91+

Image
Image Parameters SwitchYes
Image SettingsRotate mode,saturation,brightness,contrast,sharpness,gain,white balance,adjustable by client software or web browser
Day/Night SwitchDay,Night,Auto,Schedule
Image EnhancementBLC,HLC,3D DNR,Distortion Correction,Defog
SNR≥ 52 dB
Wide Dynamic Range (WDR)130 dB
Image StabilizationEIS
Privacy Mask8 programmable polygon privacy masks

Interface
Ethernet Interface1 RJ45 10 M/100 M self-adaptive Ethernet port
On-Board StorageBuilt-in memory card slot, support microSD/microSDHC/microSDXC card, up to 512 GB
Audio
Built-in Microphone: Arrayed dual-microphone,

1 input (line in), two-core terminal block, max. input amplitude: 3.3 Vpp, input impedance: 4.7 KΩ, interface type: non-equilibrium,

1 output (line out), two-core terminal block, max. output amplitude: 3.3 Vpp, output impedance: 100 Ω, interface type: non-equilibrium
Alarm2 input, 2 output (max. 24 VDC/24 VAC, 1 A)
Reset KeyYes
Power Output12 VDC, max. 100 mA

Event
Basic EventMotion detection (support alarm triggering by specified target types (human and vehicle)),video tampering alarm,exception
Smart EventScene change detection, audio exception detection, defocus detection
LinkageUpload to FTP/NAS/memory card,notify surveillance center,trigger recording,trigger capture,send email,audible warning

Deep Learning Function
Face CaptureYes
People CountingYes
Perimeter Protection
Line crossing, intrusion, region entrance, region exiting

Support alarm triggering by specified target types (human and vehicle)

General
Power
12 VDC ± 25%, 1.35 A, max. 16.2 W,Ø5.5 mm coaxial power plug,reverse polarity protection,

PoE: IEEE 802.3at, Class 4, max. 18 W
MaterialMetal
DimensionØ141 mm × 112 mm (Ø5.6″ × 4.4″)
Package Dimension206 mm × 206 mm × 230 mm (8.1″ × 8.1″ × 9.1″)
WeightApprox. 850 g (1.9 lb.)
With Package WeightApprox. 1440 g (3.2 lb.)
Storage Conditions-30 °C to 60 °C (-22 °F to 140 °F). Humidity 95% or less (non-condensing)
Startup and Operating Conditions-30 °C to 60 °C (-22 °F to 140 °F). Humidity 95% or less (non-condensing)
General FunctionHeartbeat,mirror,flash log,password reset via email,pixel counter,anti-banding
Language33 languages: English, Russian, Estonian, Bulgarian, Hungarian, Greek, German, Italian, Czech, Slovak, French, Polish, Dutch, Portuguese, Spanish, Romanian, Danish, Swedish, Norwegian, Finnish, Croatian, Slovenian, Serbian, Turkish, Korean, Traditional Chinese, Thai, Vietnamese, Japanese, Latvian, Lithuanian, Portuguese (Brazil), Ukrainian

Approval
EMCCE-EMC: EN 55032:2015+A1:2020, EN 50130-4:2011+A1:2014, EN IEC 61000-3-2:2019+A1:2021, EN 61000-3-3:2013+A1:2019+A2:2021
Safety

CB: IEC 62368-1: 2014+A11,

CE-LVD: EN 62368-1: 2014/A11: 2017
Environment
CE-RoHS: 2011/65/EU,

WEEE: 2012/19/EU,

Reach: Regulation (EC) No 1907/2006
ProtectionIP67: IEC 60529-2013,IK10: IEC 62262:2002
Anti-Corrosion ProtectionNEMA 4X (NEMA 250-2018)

4 MP AcuSense Varifocal Dome Network Camera