Grade 2 & 3 Certified
Recognised by insurers and police for the highest security standards.
Wireless Technology
No messy cables. Fast, clean installation with reliable wireless sensors.
App Control
Arm, disarm, and get instant alerts from anywhere in the world.
Image Verification
MotionCam sensors capture a photo on trigger — confirmation before police respond.
What We Install
We design and install wireless Ajax alarm systems for homes and businesses across Chesterfield, Sheffield, Dronfield, Eckington, Clay Cross, Bolsover, Matlock, Bakewell, Buxton, and throughout Derbyshire.
- Ajax Hub 2 Plus wireless control panels
- MotionProtect motion detectors (PIR)
- MotionCam photo-verification sensors
- DoorProtect door & window contacts
- Ajax Keypad and KeyPad Plus
- Ajax Rex range extenders
- Pet-immune sensors (up to 20kg)
- External sounders and sirens
- SIM-based 4G communication backup
- Panic buttons and personal alarms
Benefits
- Deters intruders before entry — 80% of burglars avoid alarmed properties
- App alerts the moment a sensor triggers
- Pet immunity — no false alarms from animals
- No landline needed — 4G SIM backup
- Insurance-recognised Grade 2 & 3 standard
- Suitable for homes, businesses, commercial units, and rental properties
Upgrades Available
- App control (Ajax app — iOS & Android)
- 24/7 police monitoring via Farsight
- Video doorbell integration
- Smart home automation (lights, plugs, heating)
- Perimeter protection (outdoor beams)
Ajax Authorised InstallationAjax System Components
Every component is purpose-built, encrypted, and tamper-proof. Grade 2 & 3 certified — recognised by insurers and police forces across the UK.
Ajax Hub 2 Plus
Central control panel. Wi-Fi, Ethernet & dual SIM 4G backup. Supports up to 100 devices.
MotionCam
PIR sensor with built-in camera. Takes a photo on trigger — visual proof before police respond.
DoorProtect
Wireless reed-switch sensor for doors and windows. Instant alert on opening. Ultra-thin design.
KeyPad TouchScreen
Touch-screen keypad with proximity card reader. Arm/disarm with PIN, card, or key fob.
StreetSiren
110dB external siren with tamper detection and built-in backup battery. Visible deterrent.
SIM 4G Backup
Dual SIM 4G/2G communication fallback. System stays connected even if broadband is cut.
Ajax Alarm System Components
Hub 2 Plus
The brain of the system. Controls all devices, collects data, and communicates with your smartphone and monitoring station via Ethernet, Wi-Fi, and dual 4G SIM cards.
MotionCam
Detects human motion and immediately takes an animated series of photos. Gives you visual confirmation of what triggered the alarm, preventing false police dispatch. Pet-immune up to 20kg.
DoorProtect
Wireless magnetic opening detector. Installs on all types of doors and windows to instantly notify you of the first signs of intrusion. Lasts up to 7 years on a pre-installed battery.
KeyPad TouchScreen
Sleek touch keypad for arming and disarming the system. Supports contactless access using cards, tags, or smartphones via Bluetooth. Includes a silent panic code.
DualCurtain Outdoor
Wireless outdoor bidirectional curtain motion detector. Protects your property perimeter, windows, and doors from the outside while allowing free movement indoors.
Ajax Video DoorBell
See and speak to visitors from anywhere via the Ajax app. Features built-in AI to distinguish humans from animals, reducing false notifications. Integrates flawlessly with the alarm system.
Monitoring Options
From app self-monitoring to 24/7 police-response monitoring — choose the level of protection that suits you.
Ajax App Self-Monitoring
Instant push alerts to your phone the moment any sensor triggers. Arm, disarm, and view system status from anywhere on iOS or Android.
Farsight Police Monitoring
24/7 professional monitoring with Farsight visual verification. MotionCam photos confirm genuine intrusion before police dispatch — no false call-outs.
Smart Notifications
Real-time alerts for every system event — arm, disarm, sensor trigger, tamper detection, and low battery. Know everything, instantly.
Ajax App — Full Control
The Ajax Security System app gives you complete control of your alarm from anywhere in the world. Arm, disarm, check status, view photos, and receive instant alerts — all on iOS or Android.
- Arm & disarm remotely from anywhere
- Instant push alerts on any sensor event
- View MotionCam verification photos
- Share access with family or keyholders
- Full system status at a glance
Residential & Commercial Alarms
Ajax systems are Grade 2 & 3 certified — suitable for homes, businesses, and commercial properties.
Residential
- Grade 2 wireless systems for homes
- Pet immunity up to 20kg — no false alarms
- App control for arm/disarm/alerts
- Suitable for houses, flats & rental properties
- Integrates with CCTV & smart automation
Commercial
- Grade 3 systems for high-risk premises
- Insurance & police-recognised certification
- 24/7 Farsight police monitoring
- Suitable for offices, warehouses & retail
- CCTV + fire + alarm in single platform
System Add-ons
Video Doorbell
Touch Keypad
Why Choose NOX for Intruder Alarms?
Customer Reviews
"Absolutely superb service. The Ajax alarm installation was carried out to an excellent standard. Neat, tidy, and they took the time to explain everything on the app."
"Very professional from survey to installation. Highly recommend them for any home security needs."
Residential & Commercial Installation
We install for homeowners, landlords, and businesses of all sizes — from a single-home alarm to a full multi-site commercial CCTV and fire safety system.
Not sure what you need? Request a free site survey — we'll advise you honestly.