Dahuasecurity.com uses cookies and similar technologies. Dahua uses functional cookies to ensure that its websites operate properly and analytical cookies to make your user experience optimal. Third-party cookies may collect data outside our websites as well. By clicking on “ Agree” or by continuing to use this website, you give consent for the setting of cookies and the processing of personal data involved. More information on our cookie statement.

IPC-HDBW8841H-Z4-LB

8MP WizMind Classroom Network Camera

> 8-MP 1/1.8" CMOS image sensor, low luminance, and high definition image.

> Outputs max. 8 MP (3840 × 2160)@25/30 fps.

> Supports Classroom Behavior Analysis, including detection of abnormal number of people (for tracking teachers), standing, writing on the blackboard, back turned to students, head up, and walking.

> Supports Exam Behavior Analysis, including detection of students looking around and passing objects between each other.

> Sound Management: With its built-in dual MICs and Dahua noise reduction algorithms, the camera supports the sound management function, using it to collect vocals in the classroom, adaptively reduce noise, and filter non-human voices.

> Built-in Hi-Fi large-diameter speaker covers an auditory range of 30 meters when used indoors.

> Supports two-way talk.

> Alarm: 3 in, 2 out; audio: 1 in, 1 out; built-in dual MICs, RS-485, BNC; supports max. 256 G Micro SD card.

> 24 VAC/12 VDC/PoE power supply, 12 VDC power output, and max. current 165 mA, easy for installation.

> 5 streams for 3-channel HD video display.

> IP67 and IK10 protection.


  • Specifications
  • Accessories
  • Download
  • Camera

    Image Sensor

    1/1.8" CMOS

    Max. Resolution

    3840 (H) × 2160 (V)

    ROM

    4GB

    RAM

    4GB

    Scanning System

    Progressive

    Electronic Shutter Speed

    Auto/Manual 1/3 s–1/100,000 s

    Min. Illumination

    0.005 lux@F1.6 (Color,30 IRE)
    0.0005 lux@F1.6 (B/W,30 IRE)
    0 lux (Illuminator on)

    S/N Ratio

    >56 dB

    Illumination Distance

    80 m (IR LED)

    Illuminator On/Off Control

    Auto

    Illuminator Number

    3 (IR LED)

    Pan/Tilt/Rotation Range

    Pan: 0°–355°
    Tilt: 0°–80°
    Rotation: 0°–355°

    Lens

    Lens Type

    Motorized vari-focal

    Lens Mount

    Module

    Focal Length

    8 mm–32 mm

    Max. Aperture

    F1.6(Constant aperture)

    Field of View

    Horizontal: 42°(W)–15°(T)
    Vertical: 23°(W)–9°(T)
    Diagonal: 48°(W)–17°(T)

    Iris Control

    Auto

    Close Focus Distance

    1.5m(4.9 ft)

    DORI Distance

    Lens

    Detect

    Observe

    Recognize

    Identify

    W

    213.6 m (700.79 ft)

    85.4 m

    (280.18 ft)

    42.7 m

    (140.09 ft)

    21.4 m

    (70.21 ft)

    T

    572.8 m (1879.27 ft)

    160 m (524.93 ft)

    80 m

    (262.47 ft)

    57.3 m

    (187.99 ft)

    Intelligence

    Classroom Behavior Analysis

    Supports student mode and teacher mode.
    Student mode:
    Head up detection, standing detection, heads up people counting, and close-up of standing students.
    Teacher mode:
    It offers abnormal number of people detection (for tracking teachers), back turned to students detection, walking detection, writing on blackboard detection, and performs face comparison of teachers.

    Exam Behavior Analysis

    Suport looking around and passing object detection

    Face Recognition

    Face recognition, track, priority, snapshot, face enhancement, face exposure
    Face attribute extract, 6 attributes and 8 expressions: Gender, age, glasses, expressions (anger, sadness, disgust, fear, surprise, calm, happiness and confusion), mask, beard
    Face matting setting: face, single inch photo
    Two snapshot strategies: priority snapshot, recognition
    Face angle filter
    Priority time setting
    Management of 5 group face libraries
    Single person register and person register in batch
    Face recognition and similarity setting
    Max supports face contrast in face library with 100,000 faces
    Support Duration Optimal

    Smart Search

    Work together with Smart NVR to perform refine intelligent search, event extraction and merging to event videos

    Video

    Video Compression

    H.265; H.264; H.264H; H.264B; MJPEG (Only supported by the sub stream)

    Smart Codec

    Smart H.265+; Smart H.264+

    Video Frame Rate

    Main stream: 3840 × 2160@(1–25/30 fps )
    sub stream 1: 1920 × 1080@(1–25/30 fps )
    sub stream 2: 1920 × 1080@(1–25/30 fps )
    sub stream 3: 1920 × 1080@(1–25/30 fps )
    sub stream 4: 704 × 576 @(1–25/30 fps )

    Stream Capability

    5 streams

    Resolution

    8M (3840 × 2160); 4M (2688 × 1520); 3M (2048 × 1536); 1080p (1920 × 1080); 720p (1280 × 720); D1 (704 × 576/704 × 480); CIF (352 × 288/352 × 240)

    Bit Rate Control

    CBR/VBR

    Video Bit Rate

    H.264: 32 kbps–10240 kbps;
    H.265: 12 kbps–10240 kbps

    Day/Night

    Auto(ICR)/Color/B/W

    BLC

    Yes

    HLC

    Yes

    WDR

    120 dB

    Scene Self-adaptation (SSA)

    Yes

    White Balance

    Auto; natural; street lamp; outdoor; manual; regional custom

    Gain Control

    Auto

    Noise Reduction

    3D NR

    Motion Detection

    OFF/ON(4 areas,rectangular)

    Region of Interest (RoI)

    Yes (4 areas)

    Defog

    Yes

    Image Rotation

    0°/90°/180°/270° (Support 90°/270° with 2688 × 1520 resolution and lower)

    Mirror

    Yes

    Privacy Masking

    4 areas

    Audio

    Built-in MIC

    Yes

    Built-in Speaker

    Yes

    Audio Compression

    G.711a;G.711Mu;G.726;G.723;PCM

    Alarm

    Alarm Event

    No SD card; SD card full; SD card error; network disconnection; IP conflict; illegal access; motion detection; video tampering; scene changing; audio exception; voltage detection; defocus detection; external alarm;face recognition; abnormal number of people detection; stand detection; walking detection; back detection; blackboard writing detection; head up detection;Exam Behavior detection

    Network

    Network Port

    RJ-45 (10/100/1000 Base-T)

    SDK and API

    Yes

    Cyber Security

    Video encryption; firmware encryption; configuration encryption; Digest; WSSE; account lockout; security logs; IP/MAC filtering; generation and importing of X.509 certification; syslog; HTTPS; 802.1x; trusted boot; trusted execution; trusted upgrade

    Network Protocol

    IPv4; IPv6; HTTP;TCP; UDP; ARP; RTP; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; SAMBA; PPPoE; SNMP

    Interoperability

    ONVIF (Profile S/Profile G//Profile T); CGI; Milestone

    User/Host

    20

    Storage

    FTP; SFTP; Micro SD card (support max. 256 GB); NAS

    Browser

    IE: IE 9 and later
    Chrome: 42 and later
    Firefox: 48.0.2 and late

    Management Software

    DH-RBS8204AM-I

    Mobile Client

    iOS;Android

    Certification

    Certifications

    CE-LVD:EN62368-1;
    CE-EMC:Electromagnetic Compatibility Directive 2014/30/EU;
    FCC:47 CFR FCC Part 15, Subpart B;
    FCC ID:FCC PART 15C

    Port

    RS-485

    1 (baud rate range:1200 bps–115200 bps)

    Audio Input

    1 channel (RCA port)

    Audio Output

    1 channel (RCA port)

    Alarm Input

    3 channels in: 5mA 3V–5V DC

    Alarm Output

    2 channels out: 1,000mA 30V DC/500mA 50V AC

    Power

    Power Supply

    12 VDC/24 VAC/PoE

    Power Consumption

    Basic: 8.86 W (12 VDC); 8.5 W (24 VAC); 8.64 w(PoE)
    Max. (IR on + ICR + Intelligence): 17.9 W (12 VDC); 15.9 W (24 VAC); 15.8 W (PoE)

    Environment

    Operating Temperature

    –30 °C to +60 °C (–22 °F to +140 °F)

    Operating Humidity

    ≤95%

    Storage Temperature

    –40 °C to +60 °C (–40°F to +140°F)

    Protection

    IP67; IK10

    Structure

    Casing

    Metal + plastic

    Product Dimensions

    129.1 mm × Φ157.9 mm (5.08"× Φ6.22")

    Net Weight

    1.5 kg (3.31 lb)

    Gross Weight

    1.6 kg (3.53 lb)