Uniview 4-Channel PoE Network Video Recorder with 4K Output, H.265 Compression & Smart Motion Detection (UV-NVR301-04S3-P4)
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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Uniview 4-Channel PoE Network Video Recorder with 4K Output, H.265 Compression & Smart Motion Detection (UV-NVR301-04S3-P4)
The UV-NVR301-04S3-P4 is a compact 4-channel PoE Network Video Recorder designed for small IP surveillance systems. It features built-in PoE ports, allowing direct connection and power supply to IP cameras without requiring an external switch. With support for H.265 compression, it significantly reduces storage usage while maintaining high-quality video recording. The system supports up to 4K HDMI output for clear monitoring and provides remote access through mobile and CMS software. Its smart motion detection and event playback features make it ideal for homes, small shops, and office security installations requiring a simple plug-and-play solution.
Key Features
- 4-channel IP camera NVR
- Built-in PoE ports for direct camera connection
- Supports H.265 / H.264 compression
- 4K HDMI output + VGA display
- Supports up to 8MP IP cameras (camera dependent)
- Smart motion detection & event playback
- Remote live view via mobile app (UNV-Link)
- 1 SATA interface (supports up to 10TB HDD)
- ONVIF & RTSP compatible
- Easy plug-and-play installation (PoE direct connect)
- Low power consumption and stable performance
- Compact design for small CCTV systems
- USB backup support
- Ideal for homes, shops, and small offices
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