Leaders of Inline Process Control Solutions For over 30 years, optek has focused on measuring process liquids through their interaction with light in facilities all over the world. Although global, optek remains a family owned company with a team of more than 100 qualified, customer-driven professionals. Our confidence is born from experience. With the expertise of more than 30,000 installations worldwide, our value to the customer resides in providing a superior product that pays back. High quality materials withstand the toughest process conditions including aggressive media, high temperature, and high pressure applications. Cleanability is ensured using high quality wetted materials, superior design, as well as sapphire optical windows. As a global partner to various industries, optek offers the most advanced technologies including superior signal amplification, inline calibration support, PROFIBUS® PA, FOUNDATION Fieldbus™ and multilingual user interfaces for easy onsite operations. Our support ensures long term satisfaction with programs such as "Speed-Parts" and "SwapRepair" to provide our customers sustainable operations and minimized downtime at the lowest cost of ownership. Conformity to international (ISO 9001, RoHS), industry-specific (FM/ATEX approval) or company standards is easily achieved with optek. Wherever process composition is controlled, the name optek has become synonymous with world-class products and support. Optimize your process with optek inline control.