DAHUA DH-IPC-HDW3441EM-S-S2 (4 MP) - DOME PoE IP CAMERA

A 50 m illumination range — nearly double the typical 30 m

DH-IPC-HDW3441EM-S-S2 illuminates territory up to 50 meters away after dark — noticeably more than the typical 30 m found on cameras of the same class. That matters most for sites with large open ground: parking lots, driveways, warehouse perimeters, where nighttime reach rather than daytime resolution decides whether a single camera covers the whole area with no blind spots at the edge of illumination.

4 MP on a 1/3" sensor in an eye-ball dome housing

A 1/3" CMOS sensor delivers 4 MP of detail — enough for confident recognition of a person in frame at moderate distance. The eye-ball dome design lets you adjust the lens tilt after it's already fixed to a ceiling or wall, and a 102° viewing angle covers a typical room or small yard with a single unit.

Basic motion capture with no people or vehicle recognition

The camera captures motion in frame but doesn't classify it as a person, vehicle, or animal — that level of analytics is left to whichever recorder or VMS the camera connects to. For a site where the main priority is exactly this nighttime reach for covering large ground rather than automatic object classification, that's a sensible trade-off.

12V DC or PoE 802.3af power at 7.1 W

The camera supports power from a regular 12V source or PoE to the 802.3af standard, drawing roughly 7.1 W — somewhat more than the lineup's smaller models, which makes sense given the more powerful IR illuminator behind that 50 m reach. The metal, IP67-rated housing withstands temperatures from -40°C to +60°C, suiting year-round outdoor installation.

A microphone, SD card up to 256 GB, and ONVIF/FTP protocols

A built-in microphone captures audio alongside video, and a 256 GB SD card slot gives a local archive independent of the network or recorder. ONVIF, RTSP, FTP, and SFTP support provides flexible connection to recorders and VMS platforms from different manufacturers.

2 infrared illumination diodes — double the count of base models

Unlike most cameras in this catalog with a single illumination diode, this one has two — that doubled count of IR light sources is exactly what delivers the 50 m reach mentioned above. That's a direct technical explanation for why this specific model outshines neighboring cameras with the same sensor type.

A 500 g weight and 106×93.6 mm dimensions

The dome housing weighs 500 g at a length of 106 mm and a width of 93.6 mm — somewhat more than the lineup's more compact eye-ball models, due to the stronger illuminator. Current draw of roughly 0.6 A and a 25 fps frame rate are worth factoring in when sizing a power source for several such cameras at once.

A fixed 2.8 mm lens with no varifocal optics

The focal length is fixed at 2.8 mm — a wide angle for general coverage, but with no ability to optically zoom in on a distant subject after installation. If the grounds are large enough that detail matters right at the edge of the 50 m illumination range, a varifocal-lens model is worth considering, where the angle can be manually adjusted for a specific distance.

If nighttime reach specifically is critical for your site, tell us the dimensions and shape of the area you need to cover and we'll advise whether one camera is enough or whether several mounting points would give fuller coverage with no blind spots.