Dahua IPC-HDW5842EMP-ASE-0280B-ATC-S3 8MP WizMind AI IR Eyeball Network Camera (Advanced Analytics, Face & Perimeter AI, IP67/IK10)
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-HDW5842EMP-ASE-0280B-ATC-S3 8MP WizMind AI IR Eyeball Network Camera (2.8mm, Advanced Analytics, Face & Perimeter AI, IP67/IK10)
The Dahua IPC-HDW5842EMP-ASE-0280B-ATC-S3 is a high-end 8MP intelligent surveillance camera from Dahua’s WizMind 5 Series, designed for enterprise-level security environments requiring advanced video analytics and high-resolution imaging. Built around a 1/1.8" progressive CMOS sensor, it delivers 4K ultra-HD resolution (3840 × 2160) with exceptional clarity, even in low-light and high-contrast scenes. Unlike standard IP cameras, this model is built for AI-driven business intelligence and security analytics. It supports deep-learning features such as face detection, face recognition-ready metadata, people counting, crowd density analysis, and heat map generation, making it ideal for retail analytics, smart buildings, transport hubs, and critical infrastructure. For security monitoring, the camera includes advanced perimeter protection functions such as intrusion detection, tripwire detection, loitering detection, and abnormal object detection. These AI-powered features help significantly reduce false alarms by accurately distinguishing humans and vehicles from environmental motion.
KEY FEATURES
- 8MP Ultra HD (3840 × 2160) resolution
- 1/1.8" progressive CMOS sensor
- Fixed 2.8mm wide-angle lens
- WizMind AI analytics platform
- Face detection & metadata extraction
- People counting & crowd analysis
- Heat map generation (retail analytics)
- Perimeter protection (intrusion, tripwire, loitering)
- Abnormal object detection
- Smart IR night vision up to 50m
- 120dB 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
- Built-in microphone (depending model variant)
- MicroSD card support up to 512GB
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