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Dahua Security Camera: 8MP(4K) Turret, 2.8mm, Lite - DH-IPC-HDW2831EMP-AS-0280B-S2

by Dahua
Save $21.00 Save $21.00
Original price $187.00
Original price $187.00 - Original price $187.00
Original price $187.00
Current price $166.00
$166.00 - $166.00
Current price $166.00

Dahua DH-IPC-HDW2831EMP-AS-0280B-S2 Fixed Lens Security Camera

Through advanced video algorithms, Dahua's Intelligent Video Surveillance (IVS) technology supports smart functions such as tripwire and intrusion detection.

Starlight technology generates clear images in near-complete darkness. A high-performing sensor and special algorithms work together to capture images in low-light and no-light environments.


  • Records up to 8 Megapixel (4K Ultra HD) resolution.
  • Equipped with a 2.8mm Fixed lens and a Built-in Mic.
  • Supports up to 3840 × 2160 resolution.
  • Features up to H.265+ high-efficiency video encoding and Dual-Streaming.
  • Supports Starlight technology, generates clear images in near-complete darkness.
  • 120 dB Wide Dynamic Range (WDR). Day/Night Infrared Cut Removal (ICR). Auto White Balance (AWB). Automatic Gain Control (AGC). Backlight Compensation (BLC). Highlight Compensation (HLC). Region of Interest (ROI).
  • Intelligent Video Surveillance (IVS) technology supports smart functions such as tripwire and intrusion detection.
  • Built-in Infrared LED, with a maximum range of 30 meters.
  • Supports Power-Over-Ethernet (PoE) installations.
  • Supports MicroSD Card Storage up to 256 Gigabytes.
  • Resilient "Weather-Proof" Ingress Protection Rating (IP67).
  • 3 Years Back-to-Base Manufacturer Warranty!

More Info
More Info

Smart H.265+ & Smart H.264+

With an advanced scene-adaptive rate control algorithm, Dahua smart encoding technology realizes the higher encoding efficiency than H.265 and H.264, provides high-quality video and reduces the cost of storage and transmission.

Wide Dynamic Range

With advanced Wide Dynamic Range (WDR) technology, the Dahua network camera provides clear details in the environment of strong brightness contrast. The bright and dark area can get clear video even in a high brightness environment or with a backlight shadow.


With advanced image processing technology and optical technology, Dahua Starlight technology can provide clear colourful video in an environment of low illuminance. It widely applies to various environments of low illuminance.

Intelligent Video Surveillance

With an advanced video algorithm, Dahua IVS technology supports intelligent functions, such as tripwire and intrusion.


IP67: The camera passes a series of strict test on dust and soak. It has a dust-proof function, and the enclosure can works normal after soaking in 1 m deep water for 30 minutes.

Wide Voltage: The camera allows ±30% (for some power supplies) input voltage tolerance (wide voltage range), and it is widely applied to an outdoor environment with unstable voltage.

    Tech Specs
    Tech Specs

    Dahua DH-IPC-HDW2831EMP-AS-0280B-S2 Security Camera

    Image Sensor 1/2.7” 8Megapixel progressive CMOS
    Effective Pixels 3840 (H) ×2160 (V)
    ROM 128 MB
    RAM 256 MB
    Scanning System Progressive
    Electronic Shutter Speed Auto/Manual 1/3 s–1/100,000 s
    Min. Illumination 0.009 Lux@F2.0
    IR Distance 30 m (98.43 ft)
    IR On/Off Control Auto/Manual
    IR LEDs Number 2
    Pan/Tilt/Rotation Range Pan: 0°–360°

    Tilt: 0°–78°

    Rotation: 0°–360°

    Lens Type Fixed-focal
    Mount Type M12
    Focal Length 2.8 mm
    3.6 mm
    Max. Aperture F2.0


    Field of View 2.8 mm: Pan 105° × Tilt 56° × Diagonal 125°

    3.6 mm: Pan 87° × Tilt 47° × Diagonal 104°

    Iris Type Fixed
    Close Focus Distance 2.8 mm: 1.0 m (3.3 ft)
    3.6 mm: 1.9 m (6.2 ft)
    Smart Event
    General IVS Analytics Tripwire; intrusion
    Video Compression H.265; H.264; H.264B; MJPEG
    Smart Codec Yes
    Video Frame Rate Main stream:

    3840 × 2160 (1 fps–15 fps)

    2688 × 1520 (1 fps–25/30 fps)

    Sub stream:

    704 × 576 (1 fps–25 fps)

    704 × 480 (1 fps–30 fps)

    Stream Capability 2 streams
    Resolution 3840 × 2160 (3840 × 2160); 3072 × 2048 (3072 × 2048); 3072 ×1728 (3072 × 1728); 2592 × 1944 (2592 × 1944); 2688 × 1520 (2688 × 1520); 3M (2048 × 1536); 2304 × 1296 (2304 × 1296); 1080p (1920 × 1080); 1.3M (1280 × 960); 720p (1280 × 720); D1 (704 × 576/704 × 480); VGA (640 × 480); CIF (352 × 288/352 × 240)
    Bit Rate Control CBR/VBR
    Video Bit Rate H.264: 32 Kbps–8192 Kbps

    H.265: 12 Kbps–8192 Kbps

    Day/Night Auto(ICR)/Color/B/W
    BLC Yes
    HLC Yes
    WDR 120 dB
    White Balance Auto/natural/street lamp/outdoor/manual/regional custom
    Gain Control Auto/Manual
    Noise Reduction 3D NR
    Motion Detection OFF/ON (4 areas, rectangular)
    Region of Interest(RoI) Yes (4 areas)
    Smart IR Yes
    Image Rotation 0°/90°/180°/270° (Supports 90°/270° with 2688 × 1520 resolution and lower.)
    Mirror Yes
    Privacy Masking 4 areas
    Built-in MIC Yes
    Audio Compression G.711A; G.711Mu; G.726; AAC
    Network RJ-45 (10/100 Base-T)
    Protocol IPv4; IPv6; HTTP; HTTPS; TCP; UDP; ARP; RTP ; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; PPPoE; 802.1x; Bonjour
    Interoperability ONVIF(Profile S/Profile G/Profile T); CGI; P2P; Milestone; Genetec
    User/Host 20
    Edge Storage Cloud; FTP; SFTP; Micro SD Card (support max. 256 GB); NAS
    Browser IE



    Management Software Smart PSS; DSS; DMSS
    Mobile Phone IOS; Android
    Certifications CE-LVD: EN62368-1
    CE-EMC: Electromagnetic Compatibility Directive
    FCC: 47 CFR FCC Part 15, Subpart B
    Power Supply 12V DC/PoE (802.3af)
    Power Consumption < 7.2W
    Operating Conditions –40°C to +55°C (–40°F to +131°F)/less than ? 95% RH
    Storage Temperature –40°C to +60°C (–40°F to +140°F)
    Protection IP67
    Casing Metal
    Dimensions 93.6 mm × ?106 mm (3.7" × ?4.2")
    Net Weight 530 g (1.1 lb
    Gross Weight 800 g (1.7 lb)

    Dahua DH-IPC-HDW2831EMP-AS-0280B-S2 Security Camera

    These datasheets may provide more information regarding the product.


      Dahua DH-IPC-HDW2831EMP-AS-0280B-S2 Security Camera

      The videos presented on this product tab may not reflect all the available options and capabilities of this specific product. Some are included to illustrate features and procedures which may be relevant.

      Dahua Technology Company Introduction

      Dahua Company Introduction

      Dahua Starlight Technology


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