Ajax MotionProtect Curtain
- 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)
Ajax MotionProtect Curtain
MotionProtect Curtain — motion detector with a long distance range and narrow protective screen. Curtain detector effectively protects the property from intruders and works as soon as a burglar enters the protected area. MotionProtect Curtain will prevent intruders from entering in your backyard unnoticed. If the burglar tries to climb over the fence, the detector will raise the alarm. At the same time, your family and pets can move freely on site. It is important to be aware of the possibility of the invasion as soon as possible. MotionProtect Curtain detector will not allow burglars to quietly get close to doors or windows or enter the terrace, even if the area is not fenced. Apartments on the first and last floors are being often penetrated through windows and balconies. The MotionProtect Curtain detector located on the facade will raise the alarm before the thief enters the premises. Indoors MotionProtect Curtain can be installed horizontally, upside down or at the angle. The sensor will monitor all access paths around the clock without reacting on people inside. In the premises with curtain detector installed, you can move freely. But if you reach out to the protected item, the alarm will trigger.
Tech specs
- Surface sound radio channel security detector
- Wireless
- Internal installation
- Compatible with Ajax Hub, Hub Plus, ReX, ocBridge Plus and uartBridge
- Sensing element Reed switch
- Up to 7 years battery life CR123A Battery
- Jewleller radio Technology -Communication range with central unit — up to 1,000 m in an open space
Two-way communication between devices
Operating frequencies — 868.0-868.6 MHz
Self-adjusting RF output power — up to 20 mW
Block encryption based on AES algorithm
Detector polling period — 12−300 s - Operating Temperature From +5°С to +40°С
- Protection against Radio Jamming
- Dimensions Diameter: 20 mm Height: 90 mm
- Weight 30g
- Certification Grade 2, CE
- 2 years replace or repair warranty (excludes battery)
