Smoke Screen Sentinel S70, Security Fog/Cloak Machine
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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Concept Smoke Screen Sentinel S70 Security Fog Generator
The Sentinel S70 is a high-performance security fog generator designed for a wide range of commercial applications, including shops, offices, workshops, service stations and jewellers.
With a fill rate of up to 800m³ in 60 seconds, the S70 can rapidly produce a dense, persistent fog that obscures visibility and helps prevent intruders from locating or removing valuable property. The dry fog is designed to leave no residue and can remain suspended for up to 40 minutes in an unventilated area.
The S70 integrates with existing alarm systems and features Turbo Mode for a powerful anti-raid burst, multiple nozzle options, automatic re-firing via Screen Sensor technology and battery backup for a minimum of one hour off mains. Full heater redundancy also helps protect against critical failure, making it a robust option for professional security installations.
Key Features:
- Fill rate up to 800m³ in 60 seconds
- Powerful anti-raid Turbo Mode
- Full heater redundancy
- Multiple nozzle options
- Dry, persistent fog leaves no residue
- Fog can remain suspended for up to 40 minutes unventilated
- Simple integration with existing alarm systems
- Supports automatic re-firing via Screen Sensor technology
- Battery backup for a minimum of 1 hour off mains
- Energy-saving mode
- 4 inputs and 7 outputs
- LCD status display
- On-board event log
- 1000ml / 5000ml fluid system
- Rugged steel casing
- Available in white or black
- Optional environmental pack for confined or high-temperature installations
- Extreme temperature operation from -10°C to 50°C
- EN50131-8 compliant
- IEC62642-8 compliant
- CNPP Class I Category 30 rated
- Dimensions: 465 x 130 x 310mm
- Weight: approximately 14.3kg pre-installation / 19kg installed
- 5-year warranty
New Sentinel range (security smoke generators)
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