Hikvision DS-2CD2T46G2-4I 4MP IP Bullet Network Camera New AcuSense Technology 80m IR
- CCTV Lens Guide
- Hard Drive Size Guide
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, frame rate settings, and whether you have H.265 encoding enabled or not to save space (We advise turning it on to double the capacity shown below with ease).
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 (to perhaps double or more these figures again).
|
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 2 Terabytes for a 4 x 4/5MP HD camera setup, as this should give you approx 2 weeks using H.265 @ 20fps and that is on continuous, not motion-detected recording.
(You may only require the full 25 frames per second on certain cameras if things are fast-moving - ie above a till)
You can also use the Hikvision online calculator to work out what works best for you specifically: https://tools.hikvision.com/ca...
(All of our hard drives come fitted and are CCTV-specific from one of the major brands)
The Hikvision DS-2CD2T46G2-4I is a 4 megapixel bullet camera with powerful, built in supplement IR light reaching a distance of up to 80 metres. The camera is one of the latest to be released within Hikvisions Easy IP 4.0 AcuSense Range.
AcuSense Technology has been developed to use deep learning algorithms to reduce false alarm notifications. Previously alarms would be falsely triggered by elements such as rain, foliage and wildlife. Now, with the AcuSense technology, the smart algorithms focus on targets such as vehicles and humans, greatly reducing the false alarms. This bullet camera can detect intelligent events such as Motion Detection, Line Crossing Detection and Tampering Alarms.
The DS-2CD2T46G2-4I has a rating of IP67 making it weather proof and perfectly suitable for use outside. The base is adjustable on three axis' allowing for the camera to be mounted to face almost any position. The camera also provides space for a Micro SD Card for on-board storage.
Users will experience high image quality even in challenging light scenarios thanks to technologies such as DarkFighter, 3D DNR, 120 dB true WDR.
We recommend using the H.265+ video compression to record footage. It has noticeably improved and increased storage and bandwidth usage since its release with no loss to image quality. It is also recommended to power the camera by PoE to reduce cable usage, however it is also possible to power the device with a 12V DC power supply unit (not included). If a PSU is required, please see the Frequently Brought Together section above for our recommendation.
- High quality imaging with 4 MP resolution
- Excellent low-light performance with powered-by-DarkFighter technology
- Clear imaging against strong backlight due to 120 dB true WDR technology
- Efficient H.265+ compression technology
- Focus on human and vehicle targets classification based on deep learning
- Water and dust resistant (IP67)
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