Dahua IPC-HDW5442EMP-ASE-0280B-ATC-S3 4MP WizMind AI IR Eyeball Network Camera (1/1.8" Sensor, 50m IR, Advanced Analytics, IP67)
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Dahua IPC-HDW5442EMP-ASE-0280B-ATC-S3 4MP WizMind AI IR Eyeball Network Camera (1/1.8" Sensor, 50m IR, Advanced Analytics, IP67)
The Dahua IPC-HDW5442EMP-ASE-0280B-ATC-S3 is a high-performance 4MP intelligent surveillance camera from Dahua’s WizMind AI series, designed for enterprise-grade security and advanced video analytics. It uses a 1/1.8" progressive CMOS sensor, which is larger than standard 1/2.8" sensors, allowing it to capture more light and deliver superior image clarity, especially in low-light environments. With a maximum resolution of 2688 × 1520 (4MP), the camera provides sharp and detailed video suitable for identification, monitoring, and forensic analysis. Its strong low-light performance ensures better color retention at night compared to higher-megapixel but smaller-sensor cameras. The camera supports a wide range of AI-powered analytics, making it suitable for smart security and business intelligence applications. These include face detection, people counting, queue management, heat map generation, video metadata extraction, and perimeter protection events such as intrusion detection, tripwire crossing, loitering detection, and abnormal object detection.
KEY FEATURES
- 4MP (2688 × 1520) high-resolution imaging
- 1/1.8" progressive CMOS sensor (enhanced low-light performance)
- Fixed 2.8mm wide-angle lens
- WizMind AI analytics platform
- Face detection and attribute analysis
- People counting and queue management
- Heat map generation (business intelligence)
- Perimeter protection (intrusion, tripwire, loitering)
- Abandoned/missing object detection
- Smart IR night vision up to 50m
- 140dB True Wide Dynamic Range (WDR)
- AI Scene Self-Adaptation (SSA)
- Smart H.265+ / AI H.265 compression
- 3D Noise Reduction (3D NR)
- HLC, BLC, Defog functions
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