Dahua NVR5216-16HP-XI/Pro – 16 Channel WizMind AI Network Video Recorder with 16 PoE Ports
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 NVR5216-16HP-XI/Pro – 16 Channel WizMind AI Network Video Recorder with 16 PoE Ports
The Dahua NVR5216-16HP-XI/Pro is an advanced AI-powered network video recorder from Dahua's flagship WizMind Series, developed for demanding commercial, industrial, and enterprise surveillance environments. Supporting up to 16 IP camera channels and featuring 16 built-in PoE ports, the recorder simplifies installation by providing power and network connectivity directly through the NVR. It supports camera resolutions up to 32MP, delivering ultra-high-definition video recording and playback for detailed monitoring and forensic investigations. Powered by Dahua's latest Xinghan Large-Scale AI Models, the NVR provides a comprehensive suite of intelligent analytics, including face detection and recognition, perimeter protection, Smart Motion Detection (SMD), AcuPick intelligent search, WizSeek target search, video metadata analysis, and licence plate comparison. These AI functions enable rapid event retrieval, enhanced situational awareness, and significantly reduced false alarms. The recorder offers up to 512 Mbps incoming bandwidth and 512 Mbps recording bandwidth, ensuring smooth operation with multiple high-resolution cameras. Its powerful decoding engine supports up to 40 channels of 1080p video at 30fps, making it ideal for large-scale surveillance deployments. For storage, the unit includes 2 SATA HDD bays, supporting up to 20TB per drive, while additional storage expansion is available through iSCSI integration. Smart H.265+ compression further reduces bandwidth and storage requirements without compromising image quality. With support for ONVIF, third-party IP cameras, remote acce
KEY FEATURES
- 16-channel IP camera support
- 16 integrated PoE ports with IEEE 802.3af/at support
- Supports camera resolutions up to 32MP
- Advanced WizMind AI with Xinghan Large-Scale AI Models
- Face detection and face recognition
- WizSeek intelligent target search
- AcuPick smart video search technology
- Smart Motion Detection (SMD)
- Perimeter protection with false alarm filtering
- Video metadata analysis for people and vehicles
- Licence plate comparison and database management
- Up to 512 Mbps incoming and recording bandwidth
- Decoding capability up to 40 × 1080p @ 30fps
- 8K HDMI video output
- Smart H.265+, H.265, Smart H.264+, H.264 and MJPEG support
- N+M clustering and iSCSI storage support
- Remote access via iOS and Android devices
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