DS-2CD3121G2E-I

Camera

Lens

Illuminator

Image Sensor 1/2.9" Progressive Scan CMOS
Max. Resolution 1920 × 1080
Min. Illumination Color: 0.01 Lux @ (F2.0, AGC ON), B/W: 0 Lux with IR
Shutter Time 1/3 s to 1/100,000 s
Day & Night IR cut filter
Angle Adjustment Pan: 0° to 355°, tilt: 0° to 75°

Lens Type Fixed focal lens, 2.8 and 4 mm optional
Focal Length & FOV
2.8 mm, horizontal FOV 104.9°, vertical FOV 58.3°, diagonal FOV 123.3°
4 mm, horizontal FOV 81.3°, vertical FOV 43.7°, diagonal FOV 96.9°
Lens Mount M12
Iris Type Fixed
Aperture F2.0

Supplement Light Type IR
Supplement Light Range Up to 40 m
Smart Supplement Light Yes
IR Wavelength 850 nm

Video

Network

Images

Main Stream
50 Hz: 25 fps (1920 × 1080, 1280 × 720)
60 Hz: 30 fps (1920 × 1080, 1280 × 720)
Sub-Stream
50 Hz: 25 fps (640 × 480, 640 × 360)
60 Hz: 30 fps (640 × 480, 640 × 360)
Video Compression
Main stream: H.265+/H.265/H.264+/H.264,
Sub-stream: H.265/H.264/MJPEG
Video Bit Rate 32 Kbps to 8 Mbps
H.264 Type Baseline Profile, Main Profile, High Profile
H.265 Type Main Profile
Bit Rate Control CBR, VBR
Region of Interest (ROI) 1 fixed region for main stream and sub-stream

Security Password protection, complicated password, HTTPS encryption, 802.1X authentication
(EAP-MD5), watermark, basic and digest authentication for HTTP/HTTPS, WSSE and
digest authentication for Open Network Video Interface, RTP/RTSP over HTTPS,
security audit log, TLS 1.2, TLS 1.3, host authentication (MAC address)
Simultaneous Live View Up to 6 channels
API Open Network Video Interface (Profile S, Profile T), ISAPI, SDK
Protocols
TCP/IP, ICMP, DHCP, DNS, HTTP, RTP, RTSP, RTCP, NTP, IGMP, IPv4, IPv6, UDP, QoS,
FTP, SMTP, SNMP v2c/v3, HTTPS, DDNS, UPnP, 802.1X
User/Host
Up to 32 users
3 user levels: administrator, operator, and user
Client iVMS-4200, Hik-Connect
Web Browser
Plug-in required live view: IE 10, IE 11,
Local service: Chrome 57.0+, Firefox 52.0+

Wide Dynamic Range (WDR) Digital WDR
SNR ≥ 52 dB
Day/Night Switch Day, Night, Auto, Schedule
Image Enhancement BLC, HLC, 3D DNR
Image Settings
Rotate mode, saturation, brightness, contrast, sharpness, gain, white balance,
adjustable by client software or web browser
Privacy Mask 4 programmable polygon privacy masks

Interface

Event

General

Ethernet Interface 1 RJ45 10 M/100 M self-adaptive Ethernet port

Basic Event
Motion detection (support alarm triggering by specified target types (human and
vehicle)), video tampering alarm, exception
Smart Event Line crossing detection, intrusion detection
Linkage Upload to FTP, send email, notify surveillance center, trigger capture

General
Power
12 VDC ± 25%, 0.4 A, max. 5 W, Ø 5.5 mm coaxial power plug, reverse polarity
protection,
PoE: IEEE 802.3af, Class 3, max. 6.5 W
Material Base: Metal, cover: Plastic
Dimension Ø 110, 8 mm × 84.7 mm (Ø 4.4" × 3.3")
Package Dimension 134 mm × 134 mm × 108 mm (5.3" × 5.3" × 4.3")
Weight Approx. 520 g (1.1 lb.)
With Package Weight Approx. 720 g (1.6 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)
Language
English, Turkish, Polish, Romanian, Czech, Slovak, Traditional Chinese, Thai,
Vietnamese, Croatian, Slovenian, Serbian, Ukrainian
General Function
Heartbeat, anti-banding, mirror, password protection, password reset via email, pixel
counter

Approval