General

Brand	Hikvision
Model	DS-2CD2123G2-IU
Type	AcuSense Built-in Mic Fixed Dome Network Camera

Technical Information

Camera Resolution	2 MP
Video	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) | 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) | 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 | 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 | Scalable Video Coding (SVC) : H.264 and H.265 encoding | Region Of Interest (ROI) : 1 fixed region(s) for main stream and sub-stream
Audio	Audio Compression : G.711/G.722.1/G.726/MP2L2/PCM/MP3/AAC-LC | Audio Bit Rate : 64 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) | Audio Sampling Rate : 8 kHz/16 kHz/32 kHz/44.1 kHz/48 kHz | Environment Noise Filtering : Yes

Display Features

Resolution

1920 × 1080

OTHERS

Image sensor	1/2.8" Progressive Scan CMOS
Illumination	Color: 0.005 Lux @ (F1.6, 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° | Rotate: 0° to 355°
Lens	Lens Type : Fixed focal lens, 2.8 and 4 mm optional | Focal Length & FOV : 2.8 mm, horizontal FOV 107°, vertical FOV 57°, diagonal FOV 127° | 4 mm, horizontal FOV 87°, vertical FOV 46°, diagonal FOV 104° | Lens Mount : M12 | Iris Type : Fixed | Aperture : F1.6 | Depth Of Field : 2.8 mm: 1 m to ∞|4 mm: 1.2 m to ∞
Illuminator	Supplement Light Type : IR | Supplement Light Range : Up to 30 m | Smart Supplement Light : Yes | IR Wavelength : 850 nm
Network	Protocols : TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SNMP | Simultaneous Live View : Up to 6 channels | API : Open Network Video Interface (Profile S, Profile G, Profile T),ISAPI,SDK,ISUP | Smooth Streaming : Yes | User/Host : Up to 32 users | 3 user levels: administrator|operator|and user.
Network Storage	NAS (NFS, SMB/CIFS),Auto Network Replenishment (ANR), | Together with high-end Hikvision memory card, memory card encryption and health detection are supported.
Web Browser	Plug-in required live view: IE 10, IE 11, | Plug-in free live view: Chrome 57.0+, Firefox 52.0+, | Local service: Chrome 57.0+, Firefox 52.0+
Image Settings	Rotate mode|saturation|brightness|contrast|sharpness|gain|white balance|adjustable by client software or web browser
Wide Dynamic Range (WDR)	120 dB
SNR	≥ 52 dB
Image Enhancement	BLC,HLC,3D DNR
Ethernet Interface	1 RJ45 10 M/100 M self-adaptive Ethernet port
On-Board Storage	Built-in memory card slot | support microSD card | up to 256 GB
Built-In Microphones	Yes
Face Capture	Yes
Dori	2.8 mm: D: 44 m, O: 17 m, R: 9 m, I: 4 m | 4 mm: D: 54 m, O: 21 m, R: 11 m, I: 5 m