Concepteur de solutions ATEX et industrielles
Contact : +33 (0) 4 88 78 21 81

Audible signalling

We offer a wide choice of sounders in terms of power, supply voltage, certification, and waterproofing. Do not hesitate to contact us to choose the most suitable product for your application.


Ex-proof sounder

A2S offers a wide choice of ATEX certified sirens dedicated to alerting areas at risk of explosion (gas and dust).

sirène industrielle étanche IP66/67

Weatherproof sounder

A complete range of industrial sirens designed according to the EN-54 standard for humid and / or dusty environments.

sirene forte puissance

High power siren

A full range of high-power multidirectional alert sirens to prevent a danger and alert populations of a potential danger.

Quality assurance and certification

Thanks to many years of experience in signage, the quality standards of the products we offer meet and exceed many global standards. We guarantee our customers that each of our products is tested and verified to work in the harshest environments. In addition to internal testing, our products are assessed and certified by several of the world’s leading independent quality assessors and certification bodies for compliance and safety. Our product certifications include UL, cUL, IECEx, ATEX, FM, VdS, DNV, INMETRO, CU TR and MED. Details of specific product certificates and declarations of conformity can be found on the product pages.

Sharing good practices

We believe that technical excellence can be achieved by sharing best practices and understanding the requirements of each sector. Our products have proven performance and we can offer standard and tailor-made solutions for various applications combined with advice from dedicated experts. Our signaling equipment can be used in multiple sectors and applications, including: energy, mining, transport, chemicals, industry … For any specific question on the applications of our products, contact-us.

The A2S lab

The spirit of innovation is at the heart of A2S. A desire to create security devices and solutions that define future market standards. The A2S Lab is the manifestation of this spirit and represents our investment in continuous innovation. We believe that specific solutions stem from our expertise and our understanding of the problems that each of our customers face

Design & assistance


Custom built
Site survey
5 years
within 48h
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