Smoke Screen Is Now Ajax Ready: Can’t See It, Can’t Steal It
When two best-in-class technologies come together, the result is something genuinely powerful. Smoke Screen Sentinel security fog generators are now officially Ajax Ready — fully certified, listed on the Ajax Systems partner directory, and seamlessly integrated with the world’s most advanced wireless intruder alarm platform.
For installers, it means faster jobs, no extra cabling, and happy customers. For homeowners and businesses, it means complete security visibility — fog system and alarm managed from one app. For intruders, there is only one outcome: they can’t see it, they can’t steal it.
What Are Ajax Systems?
If you work in residential or light commercial security, you already know Ajax. Ajax Systems disrupted the UK market with a completely wireless intruder alarm ecosystem — sleek hardware design, Grade 2 certification, and an app experience that raised the bar for the entire industry.
Today, Ajax is one of the most widely installed wireless alarm systems across Europe. Their Hub can connect up to 100 devices, support up to 50 users, and monitor every connected device with a signal ping every 12 seconds. Their Jeweller radio protocol delivers wireless range of up to 2,000 metres with automatic frequency switching if jamming is detected.
Ajax did not just enter the security market. They redefined what modern security looks and feels like — and Smoke Screen is now an official part of that ecosystem.
What Does “Ajax Ready” Mean?
Ajax Ready is Ajax Systems’ official certification programme for third-party hardware manufacturers. The badge is not decorative — it means the device has been independently tested, approved, and listed directly on the Ajax Systems product directory.
For Smoke Screen, it means every Ajax Ready Sentinel fog generator ships with:
- Two Ajax Jeweller Relay modules pre-installed inside the unit
- Factory-configured wiring following the official Smoke Screen Ajax Relay standard layout
- Relays powered by the 12V supply from the Smoke Screen PCB — no external power source needed
- Official listing at ajax.systems/ajax-ready-products
The result: a certified, plug-and-play integration that installers can deploy in minutes and end users can manage from the palm of their hand.
Why Smoke Screen? The Case for Active Security
Security fog is not just another layer in your security stack. It is fundamentally different from every other security technology — because it does not just detect or record. It physically stops crime as it happens.
When connected to an Ajax system, Smoke Screen activates the moment a confirmed intrusion occurs. Within 15 to 20 seconds, it releases a dense, harmless fog that fills the protected space and reduces visibility to near zero — for over 40 minutes.
An intruder who entered expecting to quickly locate stock, cash, jewellery, or equipment suddenly cannot see, cannot orientate themselves, and cannot operate. In most cases, they abandon the attempt immediately.
Unlike CCTV and intruder alarms — which record and notify — Smoke Screen physically prevents loss. It removes the two things criminals rely on most: visibility and time.
The fog itself is:
- Non-toxic and food safe
- Safe for electronics and sensitive equipment
- Residue-free — normal operations resume quickly after ventilation
- EN50131:8 certified — the European standard for security fog
At Smoke Screen, we believe security should adapt to you — not the other way around. Our Sentinel fog generators are designed to integrate effortlessly into the Ajax ecosystem, enhancing your protection without complicated rewiring or modifications, whether for a commercial or domestic setup.
How the Ajax Ready Integration Works
The elegance of the Ajax Ready setup is its simplicity. Here is the complete technical picture — from the signal chain to the installer configuration.
The Signal Chain
- 1 → AJAX detector triggers
Any connected Ajax device — camera, PIR motion sensor, door contact, or sensor — detects the intrusion and sends a wireless signal. - 2 → Signal reaches Ajax Wireless Hub
The hub receives the event instantly via the Jeweller protocol. - 3 → Hub sends command to pre-installed relays
The wireless Relay Jeweller modules inside the fog generator receive the arming and alarm commands wirelessly — no cables, no additional hardware. - 4 → Fog deploys in 15–20 seconds
The Sentinel fog generator fires, filling the protected space with dense, harmless security fog within seconds. - 5 → Instant push notification
The property owner receives a real-time alert on the Ajax app confirming the system has been activated.
The Two-Relay Configuration Explained
Each Ajax Ready Sentinel unit contains two pre-installed Jeweller wireless relays — each with a specific, dedicated function:
Relay 1 — “Set” (Arming)
- Triggers the ‘Set’ input on the Smoke Screen PCB
- Closes when the Ajax system is armed
- Puts the fog generator into its ready/primed state
- Must be configured as Normally Open (N/O), going Closed when armed
- Set to Bistable in the Ajax app
Relay 2 — “Alarm” (Activation)
- Triggers the ‘Alarm’ input on the Smoke Screen PCB
- Closes when a confirmed alarm event is triggered
- Commands the fog generator to fire immediately
- Must be configured as Normally Open (N/O), going Closed in alarm
- Set to Bistable in the Ajax app
⚠️ Important installer note: Both relays must be set to Normally Open (N/O) mode. If relays are used in Normally Closed (N/C) mode, there is a risk the unit will trigger in a mains fail condition. Navigate to ‘Invert Trigger Mode’ via the LCD screen on the Smoke Screen PCB and confirm both ‘Set’ and ‘Alarm’ inputs are set to N/O.
Power Supply
Both relays are powered by the 12V supply from the Smoke Screen PCB itself — no separate power feed required for the relays, keeping the installation clean and simple.
Phone Fog: Control Your Security From Anywhere
One of the standout features of the Ajax Ready integration is the ability to monitor, arm, and control your Smoke Screen system directly from the Ajax Security System app.
Through the app, you can:
- See your fog generator status — Armed, Disarmed, or Activated — alongside all other Ajax devices
- Arm and disarm remotely from anywhere in the world
- Trigger fog manually after visually verifying an intrusion via Ajax camera footage
- Set custom automation scenarios — choose specific devices that must trigger before the fog activates
- Receive instant push notifications the moment the fog fires, even on silent
This level of control means verified response every time — and zero unnecessary activations.
Ajax Ready Installer Configuration — Step by Step
For security installers, here is the complete setup workflow from unboxing to operational:
- Step 1 — Mount and power
Wall-mount the Smoke Screen Sentinel unit and connect the mains power supply. The two Jeweller relays are already inside — no additional wiring or components required. - Step 2 — Add relays to the Ajax hub via app
Open the Ajax app and add both pre-installed Relay Jeweller modules to the Ajax hub as you would any standard Ajax device. - Step 3 — Name the relays correctly
Label Relay 1 as “Set” and Relay 2 as “Alarm” within the Ajax app for clear identification and management. - Step 4 — Configure each relay as Normally Open + Bistable
Set both relays to Normally Open (going Closed in alarm) and configure each as Bistable within the Ajax app settings. - Step 5 — Set up automation scenarios :
- For the Set relay: create a scenario to ‘turn on’ when the alarm is set
- For the Alarm relay: create a scenario to ‘turn on’ when the site goes into alarm. You can specify which individual Ajax devices trigger the Smoke Screen — giving you precise control over activation conditions.
- Step 6 — Configure the Smoke Screen PCB
With the unit powered on, use the LCD screen on the PCB to navigate to ‘Invert Trigger Mode’ and switch both ‘Set’ and ‘Alarm’ inputs to Normally Open (N/O). - Step 7 — Test
Trigger a test alarm via the Ajax app and confirm the fog generator activates correctly. Job done.
Our Ajax Ready Fog Machine Range
Every Smoke Screen Sentinel fog generator is Ajax Ready. Choose the right unit for the space you are protecting:
All models deploy instantly and protect for over 40 minutes, and are certified safe for electronics, food environments, and occupied spaces.
👉 Explore the full Sentinel range →
What This Means for Installers
For Ajax installers, the Smoke Screen Ajax Ready certification is a straightforward business advantage:
- No extra cabling — relays are pre-installed and powered internally
- Faster commissioning — app-based setup in minutes, not hours
- No extra components to source — everything ships inside the unit
- Selective triggering — configure specific devices that must alarm before fog activates, giving installers and clients granular control
- Official Ajax ecosystem product — confidence in compatibility and reliability
- Upsell opportunity — adds genuine active deterrence value to every Ajax installation
What This Means for Homeowners and Businesses
Smoke Screen protects an exceptionally wide range of spaces and applications — all now manageable through a single Ajax app:
- Residential: Homes, garages, home offices, high-value collections
- Retail: Shops, cash offices, jewellers, ATM enclosures, banks
- Commercial: Warehouses, showrooms, stock rooms, data centres, boardrooms
- Industrial: Containers, kiosks, drop safes, secure storage
Whatever you are protecting — stock, cash, equipment, or the people inside — Smoke Screen and Ajax together provide a layered defence that detects, alerts, and physically stops crime at the moment it matters most.
“Smoke Screen protects people, property, and profit by removing opportunity at the exact moment it matters most.”
Frequently Asked Questions
- Which Smoke Screen models are Ajax Ready?
All models in the Smoke Screen Sentinel range — SC20, S35, S55, S70, S100, and S150 — are Ajax Ready and compatible with the Ajax wireless ecosystem. - Are the Ajax relays included with the fog generator?
Yes. Two Ajax Jeweller Relay modules come pre-installed inside every Ajax Ready Smoke Screen unit. There is nothing additional to purchase or install. - Do I need any additional wiring on site?
No. The relays are pre-installed and powered by the 12V supply from the Smoke Screen PCB itself. Installation requires only mains power connection and wall mounting. - Can I choose which Ajax sensors trigger the fog?
Yes. During app configuration, you can create custom automation scenarios that specify exactly which Ajax devices need to trigger before the Smoke Screen activates — giving you precise, verified control. - How long does the fog last?
Smoke Screen security fog provides protection for over 40 minutes, after which normal visibility returns as the fog disperses naturally. The space can be ventilated to speed this process. - Is the fog safe for electronics and food?
Yes. Smoke Screen fog is non-toxic, food safe, and safe for electronics and sensitive equipment. It leaves no residue. - Where can I view the official Ajax Ready listing for Smoke Screen?
Smoke Screen is officially listed on the Ajax Systems website at ajax.systems/ajax-ready-products/concept-smoke-screen-fog-generator/ .
Get Ajax Ready with Smoke Screen
Whether you are an installer looking to add active deterrence to every Ajax job, or a business owner ready to upgrade your security, the Smoke Screen Sentinel range is ready for you.
Can’t see it. Can’t steal it.
👉 Explore the full Sentinel fog generator range →
👉 Learn how security fog works →
👉 View our official Ajax Ready listing →
👉 Get in touch with the Smoke Screen team →
Smoke Screen is an official Ajax Ready certified partner. Sentinel fog generators are listed on the Ajax Systems partner product directory. All technical specifications are correct at time of publication.
