DS-2CD2126G2-ISU(2.8mm) - Camera with 2.8mm lens is a professional 2MP Full HD IP Dome camera designed to offer intelligent video surveillance with clear images and a wide viewing angle of up to 107° . Thanks to Powered-by-DarkFighter technology, 120 dB WDR and H.265+ compression, it guarantees high performance even in low-light or strong backlight environments. The AcuSense system with Deep Learning distinguishes people and vehicles, reducing false alarms, while the IR illuminator up to 30 meters , microSD support up to 512GB , integrated microphone , PoE power supply and IP67 and IK10 protections make it ideal for high-security residential, commercial and industrial applications. Hikvision
DS-2CD2126G2-ISU(2.8mm) – 2MP 2.8mm FIXED LENS IP DOME CAMERA - ACUSENSE - DEEP LEARNING FUNCTION - DARKFIGHTER - BUILT-IN MICROPHONE

The Hikvision DS-2CD2126G2-ISU with 2.8mm lens is a professional 2MP Full HD IP Dome camera designed to offer intelligent video surveillance with clear images and a wide viewing angle of up to 107° . Thanks to Powered-by-DarkFighter technology, 120 dB WDR and H.265+ compression, it guarantees high performance even in low-light environments and strong backlighting. The AcuSense system with Deep Learning distinguishes people and vehicles, reducing false alarms, while the IR illuminator up to 30 meters , the integrated microphone , microSD support up to 512GB and PoE power supply ensure maximum efficiency and security. IP67 and IK10 protection make it ideal for outdoor installations in residential, commercial and industrial environments.
Main features:
- 2MP Full HD 1920x1080 resolution
- 2.8mm fixed optics with a viewing angle of up to 107°
- AcuSense technology with people and vehicle detection
- Powered by DarkFighter for sharp images in low light
- Highly efficient H.265+ video compression
- WDR 120 dB for clear images even in backlight
- Smart IR illuminator up to 30 meters
- Built-in microphone for real-time audio security
- MicroSD support up to 512GB
- IEEE 802.3af PoE power supply
- IP67 protection against water and dust
- IK10 vandal-proof protection
- Deep Learning features with advanced perimeter protection
- Compatible with Hik-Connect, Hik-Central and ONVIF protocol
Further details
The 2 Megapixel Progressive Scan CMOS sensor delivers high-definition images with a maximum resolution of 1920x1080 Full HD , ensuring smooth videos, sharp details and precise recognition of people and vehicles even during continuous recording or remote viewing.
This IP Network Camera supports advanced protocols such as ONVIF, RTSP, HTTPS and PoE , ensuring maximum compatibility with NVRs, video surveillance software and Hikvision systems. H.265+ compression also optimizes bandwidth and storage space without compromising video quality.
Deep Learning Function features include intelligent perimeter protection with intrusion, line crossing, area entry and exit detection, as well as support for human and vehicle classification, offering an advanced security system suitable for residential, commercial and industrial environments.
Technical data sheet
| DS-2CD2126G2-ISU(2.8mm) | |
| Room | |
| Image Sensor | 1/2.8" Progressive Scan CMOS |
| Max. Resolution | 1920 × 1080 |
| Min. Illumination | Color: 0.002 Lux @ (F1.4, 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 mm |
| Focal Length & FOV | horizontal FOV 107°, vertical FOV 57°, diagonal FOV 129° |
| Lens Mount | M12 |
| Iris Type | Fixed |
| Openings | F1.4 |
| Depth of Field | 1.1 m to ∞ |
| Illuminator | |
| Supplement Light Type | IR |
| Supplement Light Range | Up to 30 m |
| Smart Supplement Light | Yes |
| IR Wavelength | 850mm |
| Video | |
| Main Stream | 50Hz: 25fps (1920×1080, 1280×720) 60Hz: 30fps (1920×1080, 1280×720) |
| Sub-Stream |
50Hz: 25fps (640×480, 640×360) |
| Third Stream |
50Hz: 10fps (1920×1080, 1280×720, 640×480, 640×360) |
| Video Compression |
Main stream: H.265/H.264/H.264+/H.265+, |
| 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 |
| Scalable Video Coding (SVC) |
H.264 and H.265 encoding |
| 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 | 8kHz/16kHz/32kHz/44.1kHz/48kHz |
| Environment Noise Filtering | Yes |
| Network | |
| Protocols |
TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SNMP, WebSocket, WebSockets |
| Simultaneous Live View |
Up to 6 channels |
| Smooth Streaming |
Yes |
| API | Open Network Video Interface (Profile S, Profile G, Profile T), ISAPI, SDK, ISUP |
| User/Host |
Up to 32 users. |
| Security |
Password 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 1.3, host authentication (MAC address) |
| 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. |
| Client |
iVMS-4200, Hik-Connect, Hik-Central |
| Web Browser |
Plug-in required live view: IE 10, IE 11 |
| Image | |
| Image Parameters Switch |
Yes |
| Image Settings |
Rotate mode, saturation, brightness, contrast, sharpness, gain, white balance adjustable by client software or web browser |
| Day/Night Switch |
Day, Night, Auto, Schedule |
| Wide Dynamic Range (WDR) |
120 dB |
| SNR | ≥ 52 dB |
| Image Enhancement | BLC, HLC, 3D DNR |
| Privacy Mask |
Yes |
| Interface | |
| Ethernet Interface | 1 RJ45 10M/100M self-adaptive Ethernet port |
| On-Board Storage | Built-in memory card slot, support microSD card, up to 512GB |
| Built-in Microphone | Yes |
| Audio | 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 |
| Alarm | 1 alarm input, 1 alarm output (max. 12 VDC, 30 mA) |
| Reset Key | Yes |
| Event | |
| 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, region entrance detection, region exiting detection (support alarm triggered by specified target types (human and vehicle)), Scene change detection |
| Linkage | Upload to FTP/NAS/memory card,notify surveillance center,send email,trigger recording,trigger capture |
| Deep Learning Function | |
| Face Capture | Yes |
| Perimeter Protection | Line crossing, intrusion, region entrance, region exiting Support alarm triggering by specified target types (human and vehicle) |
| General | |
| Power |
12 VDC ± 25%, 0.5 A, max. 6 W, Ø5.5 mm coaxial power plug, reverse polarity protection |
| Material |
Metal |
| Dimension |
Ø121.4 × 92.2 mm (Ø4.8" × 3.6") |
| Package Dimension |
150 mm × 150 mm × 141 mm (5.9" × 5.9" × 5.6") |
| Weight |
Approx. 550 g (1.2 lb.) |
| With Package Weight |
Approx. 800 g (1.8 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 |
33 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 |
| General Function |
Anti-banding, heartbeat, mirror, privacy mask, flash log, password reset via email, pixel counter |
| Approval | |
| EMC | FCC: 47 CFR Part 15, Subpart B CE-EMC: EN 55032: 2015, EN 61000-3-2:2019, EN 61000-3-3: 2013+A1:2019, EN 50130-4: 2011 +A1: 2014 KC: KN32: 2015, KN35: 2015 |
| Safety | UL: UL 62368-1, CB: IEC 62368-1: 2014+A11 CE-LVD: EN 62368-1: 2014/A11: 2017 LOA: IEC/EN 60950-1 |
| Environment |
CE-RoHS (2011/65/EU) |
| Protection |
IP67: IEC 60529-2013 |


