Ajax Kit21-S (MotionProtect S, Keypad Superior)
- 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 Kit 21S (Superior)
The Kit 21s features Ajax Hub 2 (supports all AJAX devices including standard motion protect PIRs + 32 Scenarios), 2x MotionProtect S, 1 x DoorProtect S, 1x Keypad Plus S, StreetSiren DoubleDeck S and HomeSiren S.
With a fully Wireless Intruder alarm system, years of battery life, and a Simplistic setup procedure, it's easy to see why Ajax is winning awards and making waves in the security industry. The advanced Jeweller Radio Technology combined with Anti-jamming bring superb reliability and the no wires, no-hassle setup makes it super fast and easy to setup.
Items included in this Kit
Ajax Hub 2 (2G)
Ajax MotionProtect S x2
Ajax Doorprotect S
Ajax Keypad Plus S
Ajax StreetSiren DoubleDeck S
Ajax HomeSiren S
Tech specs
- 100 devices can connect to the hub
- 25 cameras can connect to the hub
- 50 users can connect to the hub
- 50 rooms can be covered by the hub
- 9 groups can be used on the hub
- 32 Scenarios
- supports IOS and Android mobile applications
- Connectivity - Ethernet GSM (850/900/1800/1900 Mhz)
- Alarm signal delivery time 0.15 seconds, SMS, call, push notifications available
- Contact ID, SIA with monitoring stations
- ARM processor
- UP to 10 cameras or CCTV recorders
- Protection against jamming and tamper resistant
- operating temperature 5-40°С
- Sim card support 2G
- Mains supply 110-240V, Battery backup Li-ion 2 A-h (up to 15 hours when Ethernet off)
- Dimension 163x163x36 mm
- Grade 2, CE certification
- 2 Years replace or repair warranty (Batteries not covered)
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