Dahua NVR5832-XI – 32 Channel WizMind AI Network Video Recorder (2U, 8 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 NVR5832-XI – 32 Channel WizMind AI Network Video Recorder (2U, 8 HDD Bays)
The Dahua NVR5832-XI is a high-end 2U enterprise network video recorder from Dahua’s WizMind AI series, engineered for large-scale, high-security surveillance environments requiring maximum reliability, storage capacity, and intelligent video analytics. It supports up to 32 IP camera channels and is capable of handling video resolutions up to 32MP, making it suitable for ultra-high-definition monitoring and forensic-level video analysis. The system delivers powerful decoding performance, supporting up to 32 × 1080p @ 30fps, ensuring smooth multi-channel live view and playback even under heavy AI workloads. The NVR5832-XI is equipped with Dahua’s advanced WizMind AI engine, enabling intelligent functions such as face detection and recognition, Smart Motion Detection Plus (SMD+), perimeter protection, video metadata analysis (humans, vehicles, non-vehicles), ANPR (number plate recognition via compatible cameras), and AcuPick smart search. These AI capabilities significantly improve detection accuracy while reducing false alarms and speeding up forensic investigations. A key strength of this model is its advanced storage architecture, supporting up to 8 SATA HDDs with capacities of up to 20TB per drive. It also supports RAID 0/1/5/6/10, N+M clustering, and iSCSI network storage expansion, making it highly suitable for enterprise-grade redundancy and long-term recording requirements.
KEY FEATURES
- 32-channel IP camera support
- WizMind AI deep learning analytics platform
- Supports up to 32MP ultra HD cameras
- Face detection and face recognition
- AcuPick intelligent video search
- Smart Motion Detection Plus (SMD+)
- Perimeter protection with advanced filtering
- Video metadata analysis (people, vehicles, non-vehicles)
- ANPR support via compatible AI cameras
- Up to 512 Mbps bandwidth (incoming/recording/outgoing)
- Decoding capability up to 32 × 1080p @ 30fps
- Smart H.265+ compression for efficient storage usage
- 8 × SATA HDD bays (up to 20TB per drive)
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