Roger Technology BR21/353 BRUSHLESS 36v Electric Gate Kit - Double
- 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)
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BR21/351 Electromechanical actuator BRUSHLESS, low voltage, intensive use, single bearing, 2m cable, with native encoder onboard, irreversible, ideal for swing gates with leaf up to 5.0mt length dependant on gate construction - see above), with mechanical stopper in opening and closing.
Underground Electic Gate Kit - BR21/353
Electric Gate Motor Included - BR21/351
Foundation Box Included - FU100 Cold Galvanised
Kit Contents:
[1] SYNUS Remote Control (x2)
[2] H93 Receiver Card
[3] 180° Roger Technology M90 Photocells
[4] RL650 Release Lever (x2)
[5] Roger BR21/351 Super Intensive Motor (x2)
[6] FU100 Foundation Box (x2)
[7] EDGE 1 36v Digital Control Panel
[8] Aerial/Antenna
Features:
Super Intensive Use: Capable of running non-stop
Ideal: For swing gates up to 5.0m per leaf (dependant on gate construction - see above).
Safe: The encoder management allows a precise and safe control of slowdown when opening and closing.
Practical: Automatic programming, via the learning function of the control unit.
Quick: Ease of installation, and start up due to its simple functions.
Strong: Features a sturdy aluminium base treated with anti-corrosive paint and a reliable Roger Brushless motor, mounted in dedicated housings and bearings.
Equipped with a release lever and an easy to operate the lock.
Convenient: Battery back up available.
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