Metrawatt AG, founded in 1906 in Germany as Guggenheimer AG, is a prominent manufacturer of electrical testing and measurement equipment. The company became well-known for producing high-quality light meters and other instruments for industrial and scientific applications. Over the years, Metrawatt's light meters gained a reputation for their accuracy and reliability in measuring light intensity, contributing to various fields such as research, engineering, and quality control. The company’s history of precise measurements continues, adjusting to new technology while staying focused on maintaining high standards.