Ajax DoorProtect S
- 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 and frame rate settings. 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.
|
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 a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
DoorProtect is a wireless opening detector that notifies of first signs of room intrusion by means of an open door or window. It can be mounted on all types of doors including a metal base. The device detects the door or window being opened by means of high end British manufactured reed switch on which the magnetic field acts. It can operate as a transmitter by sending a signal from a wired sensor to the hub.
Please note: This is the device of the Superior product line. Superior products are advanced versions of Jeweller devices. This product line is developed for projects. Only accredited Ajax Systems partners can sell, install, and administer Superior products.
Features:
- Plastic reed switches: more durable than the glass ones
- Installing magnet on both sides of DoorProtect S: on the right or left
- Equipped with two magnets: small and big
Additional features
- Connector for a third party detector with NC (normally closed) contact
- Chime function: Ajax sirens make a special sound when the door is opening Jeweller
- Up to 1,200 m of radio communication in an open space
- Data is encrypted throughout the transmission process
- Regular polling to display current device statuses
- Up to 5 years of battery life
- Low battery notifications
- Panasonic pre installed battery
Compatibility
Hubs
- Hub Plus
- Hub 2 (2G)
- Hub 2 (4G)
- Hub 2 Plus
- Hub Hybrid (2G)
- Hub Hybrid (4G)
Range extenders
- ReX
- ReX 2
Communication with control panel
Jeweller communication technology
Frequency bands: 868,0 — 868,6 MHz
Communication range: up to 1,200m *In an open space*
Detection
Sensitive elements: 2 × reed switch
Sensors’ resource: 2,000,000 openings
Third-party detector connection: detector with the normally closed
(NC) contact type
Power supply
Battery: 1 × CR123A
Battery life: up to 5 years
Manufacturer: Panasonic
Installation
Operating temperature range: from 10°С to +40°С
Operating humidity: up to 75>#/p###
Protection class: IP50
Enclosure
Colour: BLACK or WHITE
Dimensions: 103 × 22 × 21 mm
Weight: 37 g
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