Hikvision DVR-208U-M1/T 8-ch 5MP 1U H.265 DVR with motion 2.0
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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HiLook DVR-208U-M1/T 8-Channel 5MP H.265 AcuSense DVR The HiLook DVR-208U-M1/T is a powerful and versatile 1U digital video recorder designed for small to medium surveillance systems. With support for multiple video formats, advanced motion detection, and high-resolution encoding, it provides reliable performance and flexible connectivity across hybrid TVI and IP camera setups. This recorder supports eight analogue channels locally and enables expansion with up to 16 IP camera inputs, with each channel capable of handling up to 8 MP resolution. That makes the DVR-208U-M1/T ideal for installations that integrate existing analogue cameras while scaling up with network cameras. The unit features adaptive input support for five signal types — HDTVI, AHD, CVI, CVBS, and IP — allowing seamless compatibility with a wide range of camera technologies. This flexibility simplifies upgrades and mixed-camera deployments without compromising monitoring capability. For high-quality video capture, the DVR offers encoding up to 4K/8 MP at 8 fps and 3K/5 MP at 12 fps, ensuring detailed recording that retains clarity and useful evidence quality. It uses H.265 compression to maximise storage efficiency while maintaining smooth video streams. Smart AcuSense motion detection technology is supported on all channels, helping to distinguish real events from irrelevant activity and reducing false alarms for more effective monitoring. Additionally, the recorder supports HDTVI two-way audio technology on all channels when compatible cameras and microphones are connected, adding context and audio capability to your surveillance setup. With its 1U form factor and support for a single HDD for extended recording storage, the HiLook DVR-208U-M1/T delivers dependable performance, flexible integration, and intelligent features for a wide range of CCTV applications.
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