The Dahua IPC-HFW2841S-S is an 8MP IR fixed-focal bullet WizSense network camera built for users who want true 4K Ultra HD detail alongside dependable, AI-powered surveillance. Using a 1/2.7″ CMOS sensor, it delivers sharp, low-noise footage suited for entrances, driveways, and general-purpose outdoor and indoor monitoring.
Resolution is the standout feature here. The Dahua IPC-HFW2841S-S outputs a maximum of 3840 x 2160 (4K Ultra HD) at up to 20fps, or 2688 x 1520 at up to 25/30fps, letting users balance maximum detail against smoother motion depending on the scene. Video is encoded through H.265, delivering a high compression rate and ultra-low bit rate that keeps storage and bandwidth use efficient even at this resolution.
Night vision is handled through a built-in IR LED, reaching a maximum illumination distance of 30 meters, giving reliable coverage after dark. Mounting flexibility is a genuine strength too, with full 360° pan, 0° to 90° tilt, and 360° rotation, letting installers fine-tune the camera’s aim precisely after mounting.
Smart Codec technology, through Smart H.264+/H.265+, adds flexible coding that adapts to a range of bandwidth and storage environments, while WDR, 3D noise reduction, HLC, and BLC help maintain image clarity across varied lighting conditions, including strong backlighting.
Smart detection is powered by deep learning. The camera supports intelligent monitoring through intrusion and tripwire detection, both with accurate classification of humans and vehicles to reduce false alerts from irrelevant motion. SMD Plus adds a further layer of motion filtering, and broad abnormality detection covers motion, video tampering, audio events, storage issues, network disconnection, IP conflicts, and illegal access attempts. A built-in microphone captures real-time audio alongside video for added security context.
Storage flexibility is a strength here as well, with support for microSD cards up to 256GB, plus FTP, SFTP, and NAS options, giving users several ways to manage recordings depending on their setup. Power flexibility is built in too, supporting both 12VDC and PoE, simplifying installation across different environments.
Built for demanding outdoor use, the Dahua IPC-HFW2841S-S carries an IP67 rating, standing up to dust, rain, and harsh weather conditions. Its all-metal casing weighs just 0.48kg, delivering a robust yet manageable design — a strong choice for users who want 4K clarity without stepping up to a premium camera line.
IPC-HFW2841S-S Camera
| Specification | Details |
| Image Sensor | 1/2.7″ CMOS |
| Max. Resolution | 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 (Color, 30 IRE)
0.0009 lux@F2.0 (B/W, 30 IRE)
0 lux (Illuminator on)
|
| S/N Ratio | >56 dB |
| Illumination Distance | 30 m (98.43 ft) (IR) |
| Illuminator On/Off Control | Auto; Manual |
| Illuminator Number | 1 (IR LED) |
| Pan/Tilt/Rotation Range |
Pan: 0°–360°
Tilt: 0°–90°
Rotation: 0°–360°
|
IPC-HFW2841S-S Lens
| Specification | Details |
| Lens Type | Fixed-focal |
| Lens Mount | M12 |
| Focal Length | 2.8 mm; 3.6 mm |
| Max. Aperture | F2.0 |
| Field of View |
2.8 mm: H: 106°; V: 56°; D: 125°
3.6 mm: H: 88°; V: 46°; D: 104°
|
| Iris Control | Fixed |
| Close Focus Distance |
2.8 mm: 1.3 m (4.27 ft)
3.6 mm: 1.9 m (6.23 ft)
|
IPC-HFW2841S-S DORI Distance
| Lens | Detect | Observe | Recognize | Identify |
| 2.8 mm | 88.0 m (288.71 ft) | 35.2 m (115.49 ft) | 17.6 m (57.74 ft) | 8.8 m (28.87 ft) |
| 3.6 mm | 106.7 m (350.07 ft) | 42.7 m (140.09 ft) | 21.3 m (69.88 ft) | 10.7 m (35.10 ft) |
IPC-HFW2841S-S Intelligence
| Specification | Details |
| IVS (Perimeter Protection) | Intrusion, tripwire (the two functions support the classification and accurate detection of vehicle and human) |
| Smart Search | Work together with Smart NVR to perform refine intelligent search, event extraction and merging to event videos |
IPC-HFW2841S-S Video
| Specification | Details |
| 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@(1–20 fps) / 2688 × 1520@(1–25/30 fps)
Sub stream: 704 × 576@(1–25 fps) / 704 × 480@(1–30 fps)
|
| Stream Capability | 2 streams |
| Resolution | 3840 × 2160 (3840 × 2160); 3072 × 2048 (3072 × 2048); 3072 × 1728 (3072 × 1728); 2880 × 1620 (2880 × 1620); 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 Illumination | Yes |
| Image Rotation | 0°/90°/180°/270° (Support 90°/270° with 2688 × 1520 resolution and lower) |
| Mirror | Yes |
| Privacy Masking | 4 areas |
IPC-HFW2841S-S Audio
| Specification | Details |
| Built-in MIC | Yes |
| Audio Compression | G.711a; G.711Mu; PCM; G.726 |
IPC-HFW2841S-S Alarm
| Specification | Details |
| Alarm Event | No SD card; SD card full; SD card error; network disconnection; IP conflict; illegal access; motion detection; video tampering; tripwire; intrusion; audio detection; voltage detection; SMD; security exception |
IPC-HFW2841S-S Network
| Specification | Details |
| Network Port | RJ-45 (10/100 Base-T) |
| SDK and API | Yes |
| 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; PPPoE; Bonjour |
| Interoperability | ONVIF (Profile S/Profile G/Profile T); CGI; P2P; Milestone |
| User/Host | 20 (Total bandwidth: 48 M) |
| Storage | FTP; SFTP; Micro SD card (support max. 256 GB); NAS |
| Browser | IE; Chrome; Firefox |
| Management Software | Smart PSS; DSS; DMSS |
| Mobile Client | iOS; Android |
| Security | Trusted execution; Digest; Security logs; WSSE; Account lockout; Syslog; 802.1x; IP/MAC filtering; HTTPS; Trusted upgrade; Trusted boot; Generation and importing of X.509 certification |
IPC-HFW2841S-S Certification
| Specification | Details |
| Certifications |
CE-LVD: EN62368-1
CE-EMC: Electromagnetic Compatibility Directive 2014/30/EU
FCC: 47 CFR FCC Part 15, Subpart B
UL/CUL: UL62368-1 & CAN/CSA C22.2 No. 62368-1-14
|
IPC-HFW2841S-S Power
| Specification | Details |
| Power Supply | 12 VDC/PoE (802.3af) |
| Power Consumption |
Basic: 2.7 W (12 VDC); 3.4 W (PoE)
Max. (H.265+ max. resolution + max. stream + WDR + IR intensity + IVS): 4.5 W (12 VDC); 5.4 W (PoE)
|
IPC-HFW2841S-S Environment
| Specification | Details |
| Operating Temperature | –40 °C to +60 °C (–40 °F to +140 °F) |
| Operating Humidity | ≤95% (RH), non-condensing |
| Storage Temperature | –40 °C to +60 °C (–40 °F to +140 °F) |
| Storage Humidity | ≤95% (RH), non-condensing |
| Protection | IP67 |
IPC-HFW2841S-S Structure
| Specification | Details |
| Casing Material | Metal |
| Product Dimensions | 166.2 mm × 70 mm × 70 mm (6.54″ × 2.76″ × 2.76″) (L × W × H) |
| Net Weight | 0.48 kg (1.06 lb) |
| Gross Weight | 0.59 kg (1.30 lb) |
Reviews
There are no reviews yet.