Dahua NVR4116-EI – 16CH WizSense AI Network Video Recorder (1 HDD, 256 Mbps)
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 DHI-NVR4116-EI 16-Channel WizSense Network Video Recorder
The Dahua DHI-NVR4116-EI is a powerful 16-channel WizSense Network Video Recorder designed to provide intelligent, reliable video management for residential, commercial, and small business surveillance systems. Supporting up to 16MP IP cameras, this compact recorder combines high-performance recording with advanced AI functions to deliver enhanced security and efficient event management.
Equipped with WizSense AI technology, the NVR offers intelligent features including Face Detection and Recognition, Perimeter Protection, and Smart Motion Detection (SMD Plus) to accurately identify people and vehicles while significantly reducing false alarms. When paired with compatible Dahua AI cameras, it provides a comprehensive intelligent surveillance solution with improved search and playback capabilities.
The recorder supports 256 Mbps incoming bandwidth, ensuring smooth recording from high-resolution cameras, while H.265/H.265+ compression reduces bandwidth and storage requirements without compromising image quality. A single SATA bay supports hard drives up to 20TB, providing ample storage for continuous recording. HDMI and VGA outputs allow high-definition local viewing, and remote access via the DMSS mobile app enables live viewing, playback, and system management from anywhere.
Key Features
- 16-channel network video recorder (NVR)
- Supports IP cameras with resolutions up to 16MP
- Dahua WizSense AI technology
- Face Detection and Face Recognition
- Smart Motion Detection (SMD Plus) for human and vehicle classification
- Perimeter Protection with intelligent intrusion detection
- 256 Mbps incoming, recording, and outgoing bandwidth
- H.265/H.265+ video compression for efficient storage
- 1 SATA hard drive bay supporting up to 20TB
- HDMI and VGA video outputs
- Gigabit Ethernet network connection
- Remote viewing and management via the DMSS mobile app
- Ideal for residential, retail, office, and commercial security installations
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