Ajax StreetSiren (DD) in Black
£122.00 Excl. VAT
Wireless outdoor siren that notifies of danger using sound and light. The device is installed outside the room to raise an alarm for everyone to hear.
- Description
- FAQ
Description
The Ajax StreetSiren DoubleDeck is a wireless outdoor siren with the same acoustic and operational specification as the standard StreetSiren, built around a different enclosure design. The DoubleDeck uses a clip-lock front panel rather than a fixed face, which accepts a Brandplate, a printed faceplate carrying the installing company’s logo and contact details. For properties where the siren is in a prominent position, this turns the device into a visible signal of who installed and monitors the system.
This listing is for the Ajax StreetSiren DoubleDeck in Black, professionally supplied and installed by CCTV Aware, Ajax Certified Specialists covering Essex, London, Hertfordshire, and Kent.
Acoustic output and alarm indication
The DoubleDeck produces between 85 and 113 dB at one metre across a frequency range of 1.6 to 4.5 kHz, with alarm duration configurable from three seconds to three minutes. LED indication on the enclosure signals alarms, entry and exit delays, arming state changes, and after-alarm periods. A chime function is available to notify occupants of opening detector events while the system is disarmed.
Tamper protection
A tamper switch triggers if the enclosure is opened. An accelerometer triggers if the unit is moved, shaken, or pulled from the wall, raising an immediate alert through the Ajax app and activating the siren if the system is armed at the time. Both protections operate independently of one another.
Battery or mains power
Four pre-installed CR123A batteries deliver up to five years of standby life, maintaining protection during a power cut. The siren also accepts a direct 6–20 V DC connection from an external supply, which is the preferred option for long-term commercial installations where battery access may be inconvenient. It connects to your Ajax Hub 2 or range extender at a radio range of up to 1,500 metres, and is rated IP54 with an operating temperature range of −25°C to +60°C.
What you receive when you order
- 1 x Ajax StreetSiren DoubleDeck in Black
- SmartBracket mounting panel
- 4 x CR123A batteries (pre-installed)
- Professional installation by CCTV Aware
The Brandplate faceplate is available separately through the Ajax partner network. If you are specifying a siren for a prominent location and want to discuss placement, power options, or the Brandplate, get in touch and we will advise on the best setup for your site.
For full technical specifications, visit the Ajax StreetSiren DoubleDeck product page on the Ajax Systems website.
Yes. We can install CCTV as discreetly as possible, depending on your property and coverage requirements.
Options can include:
- Compact camera styles
- Higher mounting positions where appropriate
- Tidy cable routes and minimal visible trunking
- Recorder installed out of sight in a secure location
If your priority is a low profile install, tell us at quotation stage so we can recommend the best approach for your layout.
The recorder (DVR or NVR) is normally installed indoors in a secure, sensible location with good ventilation.
Common locations include:
- A cupboard or utility area
- An office
- A comms cabinet or rack
We typically install it near your internet router if you want remote viewing on your phone, as it needs a network connection.
If you have a preferred location, let us know during the quote stage and we will advise if it is suitable.
In many cases, yes.
Whether you can add cameras later depends on:
- How many spare channels your recorder has
- Whether the recorder has spare capacity on the hard drive
- Whether cable routes and power options are available
If you think you might expand in future, we can design the system with this in mind, for example fitting an 8 channel recorder for a 4 camera install, or leaving suitable cable routes.
Yes. Your CCTV system records locally to the recorder (DVR or NVR). If your broadband drops out, it will still continue recording as normal.
What you will lose during an internet outage is:
- Remote viewing from your phone or PC
- Push notifications and alerts to your phone
- Remote playback access
Once the internet comes back online, remote viewing and notifications will resume.
Recording time, also known as retention, depends on a few things:
- Number of cameras
- Camera resolution (for example 6MP, 8MP)
- Recording mode (continuous 24/7, motion only, or a mix)
- Frame rate and bitrate settings
- The hard drive size fitted to your recorder
As a rough guide, higher resolution and 24/7 recording will reduce retention. Motion based recording can greatly increase retention, but it depends on how busy the scene is.
We generally specify our systems to give you a retention period of 21 days.
Hikvision CCTV systems can support a multitude of notifications that can be configured to perform various actions from alerting your mobile phone to activating a parking barrier.
That being said, this guide talks about the three main notification options.
Motion Detection
In its simplest form, this is when an object enters the camera view area and a motion is triggered.
Line Crossing
An invisible line can be drawn on a particular area of your camera view area, for example the driveway threshold or the garden boundary. Once an object crosses over that line (from either way) - a line crossing is triggered.
Intrusion Detection
This is similar to Motion Detection but more specific. With Intrusion Detection an invisible quadrilateral shape can be drawn on a particular area of your camera view, for example directly outside your front door. Once an object then enters that area - an intrusion detection is triggered.
With all of the options above, the system is unable to detect the difference between a human, pet or other object. This can often result in false notifications being triggered to the user. In addition to this, if the system generates the notification - it is then down to your broadband provider (router) to push the notification out to your mobile device. This will often fail if your provider is not quite up to scratch or your mobile phone is currently in an area with poor coverage.
Because of this, we do not provide support on notifications that are sent to your mobile device.
Unfortunately, no.
We are authorised and Certified by Hikvision UK to supply and install their products.
We are unable to provide you with an installation only service if you have purchased your own equipment as we are not insured to do so.
In addition to this, we would be unable to provide you with our comprehensive support and warranty for three years that our systems come with.
If you are considering purchasing your own equipment, please consider our guide here : Pitfalls of buying Hikvision from eBay or Amazon
Our prices are fixed, so the cost of your installation will really depend on the amount of cameras you require and the type of system.
You can obtain a free online quotation by visiting our "Online System Builder"
You can see the differences between the systems by reading "Our IP Systems Explained"
You can learn about our 'Fixed Prices, No Surprises' policy by reading our "Simple as 2, 3, 4"