Dahua NVR5216-XI – 16 Channel WizMind AI Network Video Recorder (1U, 2HDD, Ultra Smart Analytics)
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 NVR5216-XI – 16 Channel WizMind AI Network Video Recorder (1U, 2HDD, Ultra Smart Analytics)
The Dahua NVR5216-XI is a premium-grade 1U network video recorder from Dahua’s WizMind AI series, engineered for advanced security installations requiring intelligent video analysis and high-performance recording. Supporting up to 16 IP camera channels, this NVR delivers exceptional AI-driven surveillance capabilities powered by deep learning algorithms. It is designed to work seamlessly with modern IP cameras, providing both AI processing on the recorder and on the camera side, ensuring maximum flexibility and accuracy in detection and analytics. With support for ultra-high-resolution cameras up to 32MP, the NVR5216-XI provides crystal-clear video quality suitable for critical environments such as commercial buildings, transport hubs, industrial sites, and high-security areas. The device features powerful AI functions including face detection and recognition, AcuPick smart search, perimeter protection, Smart Motion Detection Plus (SMD+), video metadata analysis, and ANPR (Automatic Number Plate Recognition). These capabilities significantly reduce false alarms while improving event detection efficiency and forensic search speed. The recorder supports high bandwidth input up to 512 Mbps, ensuring smooth multi-channel recording and playback. With advanced decoding capabilities, it can handle multiple high-resolution streams simultaneously while maintaining performance stability.
KEY FEATURES
- 16-channel IP camera support
- Advanced WizMind AI analytics platform
- Supports up to 32MP ultra HD cameras
- AI features: Face detection & recognition, AcuPick search, SMD+, ANPR, metadata analysis
- Deep learning-based perimeter protection
- High decoding capability for multi-channel HD playback
- Up to 512 Mbps incoming bandwidth
- Smart H.265+ video compression technology
- Dual SATA HDD support (high-capacity storage)
- ONVIF compatibility for third-party integration
- Supports both AI by camera and AI by recorder
- Remote viewing via mobile (iOS & Android)
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