Intelligent Ajax sensors for fire protection and safety - Now EN54-certified

The GRAEF Group proudly presents the new generation of Ajax sensors - a combination of innovative technology, wireless communication and full EN54 certification. As an official distributor, we not only offer the entire product range, but also professional planning, installation and maintenance from a single source.
Highest standards thanks to EN54 certification
The new Ajax sensors in the EN54 line meet the strictest European standards for fire alarm systems, including:
EN 54-5 (heat detector)
EN 54-12 (smoke detectors with optical detection)
EN 54-3 / EN 54-23 (audible & visual alarms)
EN 54-25 (radio transmission)
This makes these products ideal for professional projects in the commercial, public or industrial sectors.
Overview of the most important Ajax sensors in the EN54 series
EN54 FireProtect (Heat) Jeweller
A wireless heat detector with two precise A1R thermistors for rapid detection of temperature rises.
EN54 FireProtect (Smoke) Jeweller
An optical smoke detector with patented smoke chamber for maximum detection reliability.
EN54 FireProtect (Smoke/Sounder) Jeweller
Combines visual smoke detection with an audible alarm - perfect for immediate on-site alerting.
EN54 FireProtect (Sounder/VAD) Jeweller
Audible alarm device with integrated visual display (VAD) for maximum visibility in emergencies.
EN54 FireProtect (VAD) Jeweller
A stand-alone visual alarm unit for barrier-free evacuation in accordance with EN 54-23.
ManualCallPoint Jeweller
Manually triggered fire alarm with resettable mechanism - reliable, durable and EN54-11-certified.
Advantages of Ajax sensors at a glance
Up to 7 years of self-sufficient operation
Patented sensor technologies
Wireless communication over up to 2,000 m
Can be integrated with other safety and automation systems
Immediate alarm forwarding to alarm receiving centers (ARC)
Ideal for modern fire protection solutions
Whether schools, offices, museums or industrial plants - the new Ajax EN54 line offers customized solutions with high scalability and reliability. Thanks to completely wireless communication, the sensors are also ideal for buildings that are difficult to access or listed buildings where conventional cabling is hardly possible.
GRAEF Group: Your partner for planning and implementation
As an authorized Ajax distributor, the GRAEF Group not only supplies the products, but also complete project solutions:
Fire protection concepts
Radio planning
Professional installation
Commissioning & maintenance
Which EN54 standards do the new Ajax sensors meet?
The sensors comply with standards EN 54-5, EN 54-12, EN 54-3/23 and EN 54-25, including class-specific requirements for heat detectors, optical smoke detectors, audible/visual alarm systems and radio transmission systems.
What are the main advantages of the new EN54 sensors?
They offer up to 7 years of battery operation, robust sensor technologies (e.g. patented smoke chamber), wireless ranges of up to 2,000 m and immediate alarm forwarding to ARC or apps.
What does the GRAEF Group offer when purchasing and installing the EN54 series?
As an authorized distributor, the GRAEF Group takes care of planning, radio network design, professional installation, commissioning, maintenance and consulting - all from a single source for standard-compliant implementation.




