Dahua IPC-HDBW3441E-S-0280B-S2 - 4MP 2.8mm Camera, 50m IR, PoE

Dahua IPC-HDBW3441E-S-0280B-S2 4MP 2.8mm Camera, 50m IR, PoE

Optics and field of view

The 2.8mm fixed lens offers a wide 107° horizontal, 56° vertical and 127° diagonal field of view, allowing large areas to be covered with a single camera. This focal length is particularly suitable for the general surveillance of open areas, halls or car parks, reducing the number of viewpoints required. The optical architecture is optimized to minimize edge-of-image distortion while maintaining a large depth of field, making it easier to simultaneously identify subjects at different distances.

Sensor, resolution and sensitivity

The 1/2.9" CMOS sensor delivers a maximum resolution of 4 MP, or 2688 x 1520 pixels, for a high level of detail suitable for fine scene analysis and identification of people or vehicles. The camera supports video streams up to 25/30 frames per second in 4 MP, guaranteeing smooth reproduction of movements. The minimum illumination is 0.005 lux in color and 0.0005 lux in black and white, which helps maintain an image that is usable in very low light conditions, without relying solely on infrared illumination.

Low-light performance

The camera incorporates an ICR (Infrared Cut Filter Removable) mechanical filter that automatically switches between day and night mode to optimize color rendering during the day and infrared sensitivity at night. The infrared distance of 50 meters ensures effective coverage in complete darkness, suitable for wide outdoor environments. Fine-grained sensitivity management helps reduce digital noise and maintain good detail readability, even with limited or uneven light sources.

Image enhancement technologies

The image processing incorporates 120 dB WDR to effectively handle high-contrast scenes, such as building entrances or areas with strong backlighting, by balancing dark and bright areas simultaneously. The BLC (Back Light Compensation) and HLC (High Light Compensation) functions help to correct backlight effects and reduce overly intense light sources such as vehicle headlights or headlamps. 3D DNR (Three-Dimensional Digital Noise Reduction) improves image sharpness while reducing low-light noise, optimizing recording quality and limiting file sizes. Rotation mode allows for corridor format display for better use of narrow and vertical areas. A digital watermarking function makes it possible to secure the integrity of flows and recordings by adding a digital signature that is difficult to forge.

Video compression and network streams

The camera supports multiple video compression formats, including H.265, H.264, H.264H, and H.264B, allowing the stream to be tailored to network capacity and storage constraints. H.265 offers a significant reduction in the bandwidth and disk space required for the same level of image quality, which is especially relevant for multi-camera installations or limited network links. Multi-stream management allows different resolution and frame rate profiles to be configured for recording, live viewing, or remote access needs.

Smart features and video analytics

Artificial intelligence features include intrusion and lane departure detection, distinguishing between humans and vehicles, to drastically reduce false alarms related to irrelevant movements such as vegetation or small animals. Face detection helps identify the presence of people in the camera's field of view and optimize the search for events in recordings. These advanced functions are adapted to scenarios of sensitive perimeters, access controls or surveillance of strategic areas, by automating the generation of targeted alerts that can be used by a monitoring system.

Local Storage and Business Continuity

The built-in SD card slot supports capacities up to 256GB, providing the ability to record video streams locally. This feature provides useful redundancy in the event of a loss of connection to the central system of record, by keeping track of events at the site itself. Local storage also makes it possible to optimize the use of the network by recording in high quality on the SD card while broadcasting a more compressed stream for remote viewing.

Connectivity and System Compatibility

The camera has a 10/100 Mbps RJ45 port for IP network connection and PoE power. Compatibility with ONVIF standards (S/G/T profiles), CGI and P2P ensures easy integration into most VMS and NVRs on the market. Specific support for platforms such as Milestone and Genetec makes it easy to integrate into existing professional video surveillance architectures, simplifying configuration, centralized management and maintenance.

Power and energy consumption

The device supports 12V DC or PoE power supply according to the 802.3af standard, which allows for great installation flexibility by pulling a single network cable for power and data. The maximum power consumption announced is 7.1 W or 8.3 W depending on the configuration and use of the features (infrared, analysis, encoding), which is still moderate for a 4 MP camera with long-range IR and advanced functions, making it easier to size PoE switches and central power supplies.

Mechanical, Adjustments and Installation

The camera offers an extended mechanical adjustment range with 0° to 355° pan, 0° to 75° tilt and 0° to 355° rotation, allowing the field of view to be precisely oriented during installation, regardless of the positioning of the support. These adjustment ranges simplify installation on the ceiling or wall, allowing optimal framing without major constraints of mounting position. The compact dimensions of 8.1 cm in diameter, 11.1 cm in height and a weight of 516 g facilitate discreet integration into different architectural configurations, including lightweight substrates.

Robustness and environmental conditions

The housing has IP67 protection, ensuring dustproof and temporary immersion resistance, making the camera suitable for use outdoors and in exposed environments. The IK10 certification attests to a high resistance to shocks and acts of vandalism, particularly relevant for installations in public or unsupervised places. The operating temperature range of -40°C to +60°C allows deployment in extreme weather conditions, whether intense cold or high heat, while maintaining the operational stability and reliability of the electronic components.

Features Dahua IPC-HDBW3441E-S-0280B-S2 - 4MP 2.8mm Camera, 50m IR, PoE: