The Dahua IPC-HFW2841T-ZS is an 8MP IR vari-focal bullet WizSense network camera built for users who want true 4K Ultra HD detail and motorized lens flexibility alongside deep learning-powered surveillance. Using a 1/2.7″ CMOS sensor, it delivers sharp, high-definition footage suited for entrances, driveways, and demanding outdoor monitoring where precise field-of-view control matters.
Resolution is the standout feature here. The Dahua IPC-HFW2841T-ZS 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.
Lens flexibility is equally strong. Its motorized vari-focal lens adjusts from 2.7mm to 13.5mm, letting installers fine-tune the field of view remotely after mounting — ideal for covering anything from a wide entryway to a distant perimeter with the same camera. Combined with 360° pan, 0° to 90° tilt, and 360° rotation, the camera offers genuinely precise aiming control.
Night vision performance is exceptional here too. With four built-in IR LEDs, the camera reaches a maximum illumination distance of 60 meters — well beyond most cameras in its class — making it a strong fit for larger properties and longer sightlines. Smart Codec technology, through Smart H.264+/H.265+, adds flexible coding that adapts to different bandwidth and storage environments, while a full 120dB WDR, 3D noise reduction, HLC, and BLC help maintain image clarity across varied and challenging lighting conditions.
Smart detection is powered by deep learning. The camera supports IVS perimeter protection, including intrusion and tripwire detection, both with accurate classification of humans and vehicles to reduce false alerts from irrelevant motion. SMD adds a further layer of motion filtering, and broad abnormality detection covers defocus, tampering, network issues, and more. A built-in microphone captures real-time audio alongside video.
Storage flexibility is a strength here, with support for microSD cards up to 256GB, plus FTP, SFTP, and NAS options. Power flexibility is built in too, supporting both 12VDC and PoE, simplifying installation across different setups. An optional -ZAS variant adds audio and alarm I/O ports for integration with external devices.
Built for demanding outdoor use, the Dahua IPC-HFW2841T-ZS carries an IP67 rating, with an optional IK10 vandal-resistant rating available. Its all-metal casing weighs approximately 0.74kg, delivering a robust, dependable solution for properties that need 4K clarity, flexible framing, and long-range night vision together.
IPC-HFW2841T-ZS 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 |
0.008 lux@F1.5 (Color, 30 IRE)
0.0008 lux@F1.5 (B/W, 30 IRE)
0 lux (Illuminator on)
|
| S/N Ratio | >56 dB |
| Illumination Distance | Up to 60 m (196.85 ft) (IR) |
| Illuminator On/Off Control | Auto; Manual |
| Illuminator Number | 4 (IR LED) |
| Pan/Tilt/Rotation Range |
Pan: 0°–360°
Tilt: 0°–90°
Rotation: 0°–360°
|
IPC-HFW2841T-ZS Lens
| Specification | Details |
| Lens Type | Motorized vari-focal |
| Lens Mount | φ14 |
| Focal Length | 2.7 mm–13.5 mm |
| Max. Aperture | F1.5 |
| Field of View |
H: 113°–31°
V: 58°–18°
D: 138°–36°
|
| Iris Control | Fixed |
| Close Focus Distance | 0.8 m (2.62 ft) |
IPC-HFW2841T-ZS DORI Distance
| Lens | Detect | Observe | Recognize | Identify |
| W | 85.3 m (279.86 ft) | 34.1 m (111.88 ft) | 17.1 m (56.10 ft) | 8.5 m (27.89 ft) |
| T | 280.0 m (918.64 ft) | 112.0 m (367.45 ft) | 56.0 m (183.73 ft) | 28.0 m (97.86 ft) |
IPC-HFW2841T-ZS 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-HFW2841T-ZS 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-HFW2841T-ZS Audio
| Specification | Details |
| Built-in MIC | Yes |
| Audio Compression | G.711a; G.711Mu; PCM; G.726 |
IPC-HFW2841T-ZS 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; defocus detection; external alarm (Only -ZAS supports); SMD; security exception |
IPC-HFW2841T-ZS 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; P2P |
| Interoperability | ONVIF (Profile S/Profile G/Profile T); CGI |
| User/Host | 20 (Total bandwidth: 48 M) |
| Storage | FTP; SFTP; Micro SD card (support max. 256 GB); NAS |
| Browser | IE; Chrome; Firefox |
| Management Software | SmartPSS Lite; 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-HFW2841T-ZS 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-HFW2841T-ZS Port
| Specification | Details |
| Audio Input | 1 channel (RCA port) (Only -ZAS supports) |
| Audio Output | 1 channel (RCA port) (Only -ZAS supports) |
| Alarm Input | 1 channel in: 5mA 3V–5 VDC (Only -ZAS supports) |
| Alarm Output | 1 channel out: 300mA 12 VDC (Only -ZAS supports) |
IPC-HFW2841T-ZS Power
| Specification | Details |
| Power Supply | 12 VDC/PoE (802.3af) |
| Power Consumption (-ZS) |
Basic: 2.7 W (12 VDC); 3.6 W (PoE)
Max. (H.265+ max. resolution + max. stream + WDR + IR intensity + IVS): 8.3 W (12 VDC); 9.6 W (PoE)
|
| Power Consumption (-ZAS) |
Basic: 2.7 W (12 VDC); 3.6 W (PoE)
Max. (H.265+ max. resolution + max. stream + WDR + IR intensity + IVS): 8.4 W (12 VDC); 9.7 W (PoE)
|
IPC-HFW2841T-ZS Environment
| Specification | Details |
| Operating Temperature | –30 °C to +60 °C (–22 °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; IK10 (optional) |
IPC-HFW2841T-ZS Structure
| Specification | Details |
| Casing Material | Metal |
| Product Dimensions | 238.5 mm × 90.7 mm × 90.7 mm (9.39″ × 3.57″ × 3.57″) (L × W × H) |
| Net Weight |
-ZS: 0.74 kg (1.63 lb)
-ZAS: 0.77 kg (1.70 lb)
|
| Gross Weight |
-ZS: 0.98 kg (2.16 lb)
-ZAS: 1.01 kg (2.23 lb)
|
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