Dahua NVR5232-XI/Pro – 32 Channel WizMind AI Network Video Recorder (1U, 2 HDD Bays)
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 NVR5232-XI/Pro – 32 Channel WizMind AI Network Video Recorder (1U, 2 HDD Bays)
The Dahua NVR5232-XI/Pro is part of Dahua’s premium WizMind XI/Pro AI series, engineered for intelligent, large-scale surveillance applications. It supports up to 32 IP camera channels and combines powerful AI computing with high-bandwidth video processing to deliver reliable performance in demanding environments such as smart cities, commercial complexes, industrial sites, and transport infrastructure. This model supports camera resolutions up to 32MP, ensuring ultra-clear image quality for detailed monitoring and forensic analysis. With advanced decoding performance, it can handle multiple high-resolution streams simultaneously, supporting up to 40 × 1080p @ 30fps decoding capability (AI optimised mode dependent) for smooth live view and playback. At its core, the NVR integrates Dahua’s Xinghan large-scale AI models, enabling intelligent functions such as face detection and recognition, AcuPick smart search, WizSeek intelligent retrieval, perimeter protection, Smart Motion Detection (SMD), video metadata analysis, and ANPR (via compatible cameras). These AI tools significantly reduce manual search time and improve detection accuracy across large video datasets. The system supports both AI by recorder and AI by camera, allowing flexible deployment where analytics can be processed at the edge or centrally depending on system design. It also supports up to 32 channels of WizSeek and AcuPick search, enabling fast target tracking across large-scale deployments.
KEY FEATURES
- 32-channel IP camera support
- WizMind XI/Pro AI deep-learning platform
- Supports cameras up to 32MP resolution
- Xinghan large-scale AI model processing
- Face detection and face recognition
- AcuPick intelligent video search
- WizSeek smart target retrieval
- Smart Motion Detection (SMD)
- Perimeter protection with advanced filtering
- Video metadata analysis (humans, vehicles, attributes)
- ANPR support via compatible AI cameras
- Up to 512 Mbps incoming/recording bandwidth
- Decoding up to 40 × 1080p @ 30fps (AI-dependent)
- Smart H.265+ compression
- 2 × SATA HDD bays (up to 20TB per drive)
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