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Hikvision DS-2CD2186G2-ISU 8MP 4K IP Acusense Dome with Audio
Hikvision DS-2CD2186G2-ISU 8MP 4K IP Acusense Dome with Audio
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Hikvision DS-2CD2186G2-ISU 8MP 4K IP Acusense Dome with Audio

Hikvision Hikvision
  • 4K Ultra High Resolution
  • Built-in microphone
  • Acusense detection

The DS-2CD2186G2-ISU is an 8 Megapixel 4K IP network audio dome camera that features Acusense smart analytic technology for accurate intrusion alerts (Read more)

There are 2 variants of this product

Hikvision DS-2CD2186G2-ISU 4MP 2.8mm Dome Camera

The Hikvision DS-2CD2186G2-ISU is an ultra high resolution 8 Megapixel 4K network dome camera with a 2.8mm fixed lens which uses AcuSense to greatly reduce the number of false alarm notifications received, and produces high quality colour images in ultra low light scenes thanks to Hikvision's Powered by DarkFighter Low Light Technology. It also features a built-in microphone and speaker for real-time 2 way audio security, and an optional interface to add an external speaker.

Available in black or white.

AcuSense Technology

The most common concerns in perimeter protection are trespassing and vehicle break-ins. AcuSense helps you to focus on these events in two ways

  • Alarm will only trigger when the preset intrusion type takes place
  • Related videos are sorted by categories for easier search

Users can focus on alarms triggered by humans and vehicles while false alarms triggered by small animals or other irrelevant objects are vastly reduced



Powered by Darkfighter Powered_By_Darkfighter_Scene.png

Alongside the AcuSense deep learning capabilities, the DS-2CD2186G2-ISU is complimented by Hikvisions 'Powered by Darkfighter' technology. This allows the camera to stay in colour mode for longer in low light conditions. When small details matter, such as the colour of an intruders clothes, Darkfighter allows for more detailed surveillance for longer periods.

H2.65+ Compression

Hikvision lifts video surveillance to an unprecedented level with its H.265+ codec. In Full HD mode, H.265+ uses less than 20% of the bandwidth of H.264, allowing for live streams of unrivalled quality.

H.265+ also greatly outperforms all its predecessors in terms of storage. Regardless of environment or application, H.265+ reduces the required storage space by more than 80%. In short, H.265+ allows you to kill two birds with one stone: you can now record images at amazingly high resolutions and minimise the required storage capacity. This makes H.265+ the ideal solution for 24-hour surveillance.


  • Ultra high quality imaging with 8 MP resolution
  • Excellent low-light performance with powered-by-DarkFighter technology
  • Efficient H.265+ compression technology
  • Clear imaging against strong back light due to 120 dB true WDR technology
  • False alarm reduction through human and vehicle target classification based on deep learning
  • Water and dust resistant (IP67) and vandal-resistant (IK10)
  • Built-in microphone for real-time auto security
  • 3D DNR technology delivers clean and sharp images
  • 2.8mm fixed lens
  • Up to 30m IR distance
  • Face Capture
  • Smart motion detection
  • Supports on board storage (up to 256GB)
  • 12V DC & PoE (802.3af)


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Product Specifications

Image Sensor1/1.8" Progressive Scan CMOS
Min. IlluminationColour: 0.003 Lux @ (F1.6, AGC ON), B/W: 0 Lux with IR
Shutter Speed1/3 s to 1/100,000 s
Slow ShutterYes
Wide Dynamic Range120 dB
Day & NightIR cut filter
Angle AdjustmentPan: 0° to 355°, tilt: 0° to 75°, rotate: 0° to 355°
Lens TypeFixed focal lens, 2.8 and 4 mm optional
Focal Length & FOV2.8 mm, horizontal FOV 111°, vertical FOV 59°, diagonal FOV 131°4 mm, horizontal FOV 87°, vertical FOV 47°, diagonal FOV 102°
Lens MountM12
Iris TypeFixed
Working Distance2.8 mm: 2.6 m to ∞4 mm
DORID: 89.2 m, O: 35.4 m, R: 17.8 m, I: 8.9 m
Supplement Light TypeIR
Smart Supplement LightYes
IR Wavelength850 nm
IR RangeUp to 30 m
Max. Resolution3840 × 2160
Main Stream50 Hz: 25 fps (3840 × 2160, 3200 × 1800, 2688 × 1520, 1920 × 1080, 1280 × 720)
60 Hz: 24 fps (3840 × 2160) 30 fps (3200 × 1800, 2688 × 1520, 1920 × 1080, 1280 × 720)
Sub-Stream50 Hz: 25 fps (640 × 480, 640 × 360)60 Hz: 30 fps (640 × 480, 640 × 360)
Third Stream50 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.
Video CompressionMain stream: H.265/H.264/H.264+/H.265+
Sub-stream: H.265/H.264/MJPEG
Third stream: H.265/H.264
*Third stream is supported under certain settings.
Video Bit Rate32 Kbps to 16 Mbps
H.264 TypeBaseline Profile/Main Profile/High Profile
H.265 TypeMain Profile
H.264+Main stream supports
H.265+Main stream supports
Bit Rate ControlCBR/VBR
Scalable Video Coding (SVC)H.264 and H.265 encoding
Region of Interest (ROI)1 fixed region for main stream and sub-stream
Environment Noise FilteringYes
Audio Typemono sound
Audio Sampling Rate8 kHz/16 kHz/32 kHz/44.1 kHz/48 kHz
Audio CompressionG.711ulaw/G.711alaw/G.722.1/G.726/MP2L2/PCM/MP3/AAC
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)
Simultaneous Live ViewUp to 6 channels
User/HostUp to 32 users. 3 user levels: administrator, operator and user
SecurityPassword protection, complicated password, HTTPS encryption, IP address filter, Security Audit Log, basic and digest authentication for HTTP/HTTPS, TLS 1.1/1.2, WSSE and digest authentication for Open Network Video Interface
Network StorageMicroSD/SDHC/SDXC card (256 GB) local storage, and NAS (NFS, SMB/CIFS), auto network replenishment (ANR)Together with high-end Hikvision memory card, memory card encryption and health detection are supported.
ClientiVMS-4200, Hik-Connect, Hik-Central
Web BrowserPlug-in required live view: IE 10+Plug-in free live view: Chrome 57.0+, Firefox 52.0+Local service: Chrome 57.0+, Firefox 52.0+
SNR≥ 52 dB
Target CroppingYes
Day/Night SwitchDay, Night, Auto, Schedule
Image EnhancementBLC, HLC, 3D DNR
Image Parameters SwitchYes
Image SettingsRotate mode, saturation, brightness, contrast, sharpness, gain, white balance adjustable by client software or web browser
Ethernet Interface1 RJ45 10 M/100 M self-adaptive Ethernet port
On-Board StorageBuilt-in memory card slot, support microSD/SDHC/SDXC card, up to 256 GB
Built-in MicrophoneYes
Audio-S: 1 input (line in), max. input amplitude: 3.3 vpp, input impedance:4.7 KΩ, interface type: non-equilibrium;1 output (line out), max. output amplitude: 3.3 vpp, output impedance: 100 Ω, interface type: non-equilibrium, mono sound
Alarm-S: 1 input, 1 output (TTL: max. 12 VDC, 30 mA)
Hardware ResetYes
Basic EventMotion detection (human and vehicle targets classification), video tampering alarm, exception-S: alarm input and output
Smart EventScene change detection
Deep Learning Function
Face CaptureYes
Perimeter ProtectionLine crossing detection, intrusion detection, region entrance detection, region exiting detection
Supports human and vehicle targets classification
Camera MaterialMetal
Screw MaterialSUS304
Camera DimensionØ121.4 mm × 92.2 mm (Ø4.8" × 3.6")
Package Dimension150 mm × 150 mm × 141 mm (5.9" × 5.9" ×5.6")
Camera WeightApprox. 590 g (1.3 lb.)
With Package WeightApprox. 850 g (1.9 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)
Linkage MethodUpload to FTP/memory card/NAS, notify surveillance centre, send email, trigger recording, trigger capture-S: trigger alarm output, audible warning
Firmware VersionV5.5.112
Power Consumption and Current12 VDC, 0.5 A, max. 6 WPoE (802.3af, 36 V to 57 V), 0.25 A to 0.15 A, max. 7.5 W
Power Supply12 VDC ± 25%PoE: 802.3af, Class 3
Power InterfaceØ5.5 mm coaxial power plug
Web Client 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
General FunctionAnti-flicker, heartbeat, mirror, privacy mask, flash log, password reset via email, pixel counter
Software ResetYes
EMCFCC (47 CFR Part 15, Subpart B);
CE-EMC (EN 55032: 2015, EN 61000-3-2: 2014, EN 61000-3-3: 2013, EN 50130-4: 2011 +A1: 2014);
RCM (AS/NZS CISPR 32: 2015);
KC (KN 32: 2015, KN 35: 2015)
SafetyUL (UL 60950-1);
CB (IEC 60950-1:2005 + Am 1:2009 + Am 2:2013, IEC 62368-1:2014); CE-LVD (EN 60950-1:2005 + Am 1:2009 + Am 2:2013, IEC 62368-1:2014)
EnvironmentCE-RoHS (2011/65/EU); WEEE (2012/19/EU); Reach (Regulation (EC) No 1907/2006)
ProtectionIP67 (IEC 60529-2013), IK10 (IEC 62262:2002)

Product variants available

15177 DS-2CD2186G2-ISU 2.8MM In stock
15392 DS-2CD2186G2-ISU/BLACK 2.8MM In stock

Useful Files and Links

  Hikvision DS-2CD2186G2-ISU User Guide
  Hikvision DS-2CD2186G2-ISU Quick Start Guide
  Hikvision DS-2CD2186G2-ISU Datasheet
External links*
Hikvision website
Hikvision support site

* External websites provide additional content that supports the content on connectec.uk however the external Web site is subject to change and is beyond the control of Connectec Ltd. Connectec cannot guarantee the accuracy of content on external websites and does not endorse the information or products on any external websites. You will be subject to the external websites own privacy policy when you follow these links.


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Our technical support team are experienced installation engineers with years of field experience.



Customer service is our top priority. We always try to ensure we offer a first class service too all our customers.



We offer FREE mainland UK delivery on orders over £75 and FREE next day delivery on orders over £150*.



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