Dahua IPC-HDW5241EMP-ASE-0280B-ATC-S3 2MP WizMind AI IR Eyeball Network Camera (2.8mm, Advanced Analytics, Perimeter Protection, 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-HDW5241EMP-ASE-0280B-ATC-S3 2MP WizMind AI IR Eyeball Network Camera (2.8mm, Advanced Analytics, Perimeter Protection, IP67)
The Dahua IPC-HDW5241EMP-ASE-0280B-ATC-S3 is a professional-grade 2MP intelligent surveillance camera from Dahua’s WizMind AI series, designed for high-accuracy video analytics and enterprise-level security applications. Built around a 1/2.8" progressive CMOS sensor, it delivers Full HD 1080p resolution (1920 × 1080) with strong low-light performance and stable imaging for critical monitoring scenarios. Unlike standard cameras, this model focuses heavily on AI-powered video analytics, making it suitable for advanced security systems such as commercial complexes, transport hubs, retail environments, and industrial facilities. It supports deep-learning functions including face detection, people counting, heat mapping, queue management, and video metadata extraction, enabling not just surveillance but also business intelligence.
KEY FEATURES
- 2MP Full HD resolution (1920 × 1080)
- 1/2.8" progressive CMOS sensor
- Fixed 2.8mm wide-angle lens
- WizMind AI advanced analytics platform
- Face detection and face attributes extraction
- People counting and queue management
- Heat map and behavioral analysis
- Perimeter protection (intrusion, tripwire, loitering)
- Smart object detection (missing/abandoned objects)
- Smart IR night vision up to 50m
- 120dB True Wide Dynamic Range (WDR)
- AI H.265 / Smart H.265+ compression
- 3D noise reduction (3D NR)
- Defog, HLC, BLC, SSA image enhancement
- Built-in microphone (audio capture)
- Alarm I/O: 1 input / 1 output
- Audio I/O support (depending configuration)
- MicroSD card support up to 512GB
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