Dahua NVR5432-EI2 32-Channel 4HDD WizSense Network Video Recorder with AI Analytics & 8K Output
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 NVR5432-EI2 32-Channel 4HDD WizSense Network Video Recorder with AI Analytics & 8K Output
The Dahua NVR5432-EI2 is part of Dahua’s advanced WizSense EI2 series, engineered for intelligent video surveillance in demanding environments. Supporting up to 32 IP camera channels, it provides exceptional recording performance with a maximum incoming bandwidth of 448 Mbps, ensuring smooth and reliable video capture even in high-resolution systems. With built-in AI capabilities, the recorder supports face detection and recognition, perimeter protection, SMD Plus, video metadata analysis, and AcuPick smart search technology, significantly improving monitoring efficiency and reducing false alarms. The device supports up to 32MP camera resolution and offers 8K HDMI video output, delivering ultra-clear live viewing and playback. Its decoding capability supports up to 40 × 1080p@30fps, making it suitable for multi-camera monitoring environments.
KEY FEATURES
- Supports up to 32 IP camera channels
- AI by Recorder: Face detection, face recognition, SMD Plus, AcuPick, video metadata
- AI by Camera: Advanced analytics including ANPR, people counting, heat map, PPE detection
- Max 448 Mbps incoming bandwidth
- 8K HDMI output for ultra-high-definition display
- Supports up to 32MP camera resolution
- Decoding capability: 40 × 1080p @ 30fps
- 4 SATA HDD bays, up to 20TB per drive (80TB total)
- Smart search and playback with AcuPick technology
- Supports H.265 / H.264 compression formats
- Dual HDMI and dual VGA outputs
- ONVIF compatibility with third-party IP cameras
- Remote access via mobile (iOS/Android) and web browsers
- Embedded Linux operating system for stability
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