Chauvin Arnoux is a distinguished French industrial group founded in 1893 that has established itself as a global leader in the design and manufacture of portable test and measurement instrumentation. Renowned for inventing the universal tester, the company provides a comprehensive range of high-quality tools for electrical testing, power quality analysis, and environmental measurement across the industrial and tertiary sectors. By integrating advanced technology with rigorous safety standards, Chauvin Arnoux remains a primary reference for professionals seeking to monitor, troubleshoot, and optimize the performance of electrical installations and energy systems worldwide.