Roger Technology BH23/282 24v BRUSHLESS Electric Gate Kit - Double (284 Kit)
- 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 BH23/282 are electromechanical articulated actuators that eliminate the immediate restriction a large pillar can create. The onboard super intensive use 24v BRUSHLESS motor with native encoder onboard is ideal for swing gates with leaf up to 3.0 m in length, with mechanical stopper in the opening and closing positions.
Kit Contents:
[1] SYNUS Remote Controls (x2)
[2] H93 Receiver
[3] Aerial/Antenna
[4] 180° Roger Technology M90 Photocells
[5] BH23/282 Super Intensive & Steel Articulated arms (LT302) (x2)
[6] B70/2DC Control Panel
Optional Extras:
Double Gate Magnetic Lock Kit [A]
Interlocking floor device (left or right)
Adjustable pin and bracket kit (8mm Bracket)
Door Loop
250kg Maglock
Z & L Bracket
VHLR - Relay
2.5amp Lock Power Supply
Features include:
Super Intensive Use: Capable of running non-stop.
Ideal: For swing gates upto 2.8m per leaf/300Kg
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 startup 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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