Security Services
Intruder Alarm Systems — Professional Installation Across the UK
Prism is a trusted intruder alarm installer UK-wide, powering new installations with Ajax wireless security and full support for existing Honeywell, Texecom and Pyronix systems. Free survey, nationwide coverage.
Our Preferred System
Authorised Ajax Installer
For all new intruder alarm installations, Prism specifies Ajax Systems — the world’s fastest-growing professional security platform, trusted by over 4.5 million users worldwide. Ajax’s Jeweller wireless protocol delivers encrypted, tamper-proof communication with a device range of up to 1,700 metres, while a single mobile app puts complete control of your security system in your pocket.
4.5M+
Users worldwide
1,700m
Device wireless range
Grade 2/3
EN 50131 compliant
1 App
Controls everything
Ajax Hardware
The System Behind the Security
Every component in an Ajax system communicates via the encrypted Jeweller protocol. Tamper-resistant, battery-powered and wireless — with no compromises on reliability.
Ajax Hub 2 Plus
The central brain of every Ajax installation. Connects via Ethernet, Wi-Fi and dual SIM simultaneously, meaning your alarm is online even if one connection is severed. Built-in battery backup keeps the system running during power cuts.
- ✓Ethernet + Wi-Fi + dual SIM (2G/LTE)
- ✓Supports up to 99 devices
- ✓Built-in tamper and jamming detection
- ✓PD 6662:2017 and EN 50131 Grade 2/3
MotionProtect Jeweller
A precision PIR motion detector using Ajax’s SmartDetect algorithm to distinguish genuine human movement from pets and environmental changes.
- ✓12m range, 88.5° detection angle
- ✓Pet immunity up to 20kg
- ✓Up to 5-year battery life (CR123A)
- ✓1,700m wireless range to hub
DoorProtect Jeweller
Magnetic opening detector for doors, windows, cabinets and gates. Alerts instantly when any protected point is opened. Tamper alarm activates if the device is removed.
- ✓Instant open/close detection
- ✓Tilt sensor for tamper detection
- ✓Up to 4-year battery life
- ✓Suitable for internal and external doors
GlassBreak Jeweller
Detects the sound and vibration of breaking glass up to 9 metres away. Dual-stage algorithm prevents false alarms while guaranteeing detection of forced entry.
- ✓9m detection range
- ✓Dual acoustic + shock detection
- ✓Works on standard, tempered and wired glass
- ✓Up to 5-year battery life
StreetSiren Jeweller
Outdoor sounder/strobe for perimeter alerting. Loud, weather-resistant and tamper-protected, designed to deter intruders before they reach entry points.
- ✓113 dB alarm signal
- ✓IP55 weather resistance
- ✓Built-in battery for power-cut resilience
- ✓LED strobe for visual deterrence
Ajax Security App
One app for every Ajax device: intruder alarms, CCTV cameras, fire detectors, access control and automation. Free on iOS and Android.
- ✓Arm, disarm and manage remotely
- ✓Instant push notifications for every event
- ✓Photo verification on supported hubs
- ✓Multi-user access with permission levels
Existing Systems
We Support All Major Brands
Ajax is our system of choice for new installations — but we’re equally at home with any existing manufacturer. Whether you have a legacy panel needing a service, a system that needs upgrading or a maintenance contract you want to transfer, our engineers are trained across all leading platforms.
We can take over maintenance, carry out fault-finding, add zones, update firmware and advise on whether a full upgrade to Ajax makes long-term sense for your site.
Standards & Compliance
Understanding Alarm Grades — BS EN 50131
Grade 1
Low Risk
Basic domestic. Suitable for properties with low intrusion risk.
Grade 2
Low–Medium Risk
Most common for monitored systems. Required for police URN registration. Ajax achieves Grade 2.
Grade 3
Medium–High Risk
Higher-value commercial premises. Ajax achieves Grade 3 on supported configurations.
Grade 4
High Risk
Highest-risk sites. Specialist design required. Contact us to discuss.
Common Questions
Frequently Asked Questions
Why does Prism use Ajax for new alarm installations?
Ajax Systems is one of the world’s leading wireless security platforms, trusted by over 4.5 million users globally. Their Jeweller encrypted wireless protocol offers up to 1,700m device range with no interference, and every Ajax system is controlled through a single mobile app covering intruder alarms, CCTV, fire detection and access control in one place. This aligns perfectly with Prism’s ethos of delivering full-spectrum, joined-up security.
Can you maintain my existing Honeywell, Texecom or Pyronix alarm?
Absolutely. We are experienced in maintaining and upgrading systems from all major manufacturers including Honeywell Galaxy, Texecom Premier Elite, Pyronix Enforcer and many others. We can take over your existing maintenance contract, carry out fault rectification, add zones, and advise on whether an upgrade to Ajax is the right step for your property.
What grade intruder alarm do I need?
Under BS EN 50131, intruder alarm systems are graded 1 to 4 based on risk. Ajax systems achieve Grade 2 (standard for monitored residential and commercial systems requiring a police URN) and Grade 3 (higher-risk commercial sites). Our engineers advise on the correct grade during your free site survey, taking into account your insurer’s requirements.
Is the Ajax wireless system reliable?
Yes. Ajax uses a proprietary encrypted two-way Jeweller radio protocol specifically designed for security applications. Every communication is encrypted and authenticated. The Hub maintains a live connection via Ethernet and dual SIM; if one path is severed, it automatically fails over. The hub also has a built-in battery backup so it continues operating during a power cut.
How long does an Ajax alarm installation take?
Most residential Ajax installations are completed in a single day. The wireless design eliminates the need for extensive cabling, significantly reducing disruption compared to wired systems. Commercial installations with multiple zones and integrations may take two to three days depending on site size.
Protect Your Property with an Ajax Alarm System
Book a free, no-obligation survey. Our engineers will assess your site, specify the right system and provide a fully itemised quote — usually within 24 hours.