Testo was established in 1957 in the Black Forest region of Germany. It initially focused on the development of electronic measuring instruments. Over the decades, it specialized in heating technology, refrigeration, air conditioning, ventilation, and food safety, Testo has delivered cutting-edge solutions that redefine the standards of precision and reliability. With a commitment to optimal warmth, efficient cooling, and smart solutions for refreshing environments, Testo's instruments are crafted to elevate every space.