Dual Set designs, installs and maintains fire detection, intruder alarm and CCTV systems from Legnago in the lower Veronese, working across the Veneto and neighbouring provinces. Its certifications page states that the company holds IMQ-AIE certification for fire detection and audio evacuation systems — the Italian company scheme covering design, installation, maintenance and repair of automatic and manual fire detection and evacuation installations — alongside IMQ alarm-installer certification for levels 1 to 3, held since 1995. Its technicians hold the corresponding IMQ personal certification as maintenance technicians for those systems. Quality management is certified to ISO 9001:2015 by CSQ-IMQ under certificate DUAL 9165. It is one of very few Italian installers to publish the IMQ-AIE credential rather than only a management-system certificate.