Providing quality testing instrumentation and technical support services for research and testing laboratories has been our specialty since 1925. Meeting your testing needs is the primary focus of our business, which is why Koehler Instrument Company is a leading producer and supplier of petroleum, synfuels and petrochemical instrumentation worldwide.

At Koehler, we pride ourselves in innovation. In a time of continuous technological advancement and transition we are constantly implementing new and improved ways to surpass the needs of an ever-evolving industry. Koehler products are backed by our staff of technically knowledgeable, trained specialists who are experienced in both petroleum products testing and instrument service, which is carried out either on site or at a Koehler service center.

has been on the market for 40 years and is known worldwide for its automatic kinematic viscometry systems covering a wide range of viscosity testing. Our S-flow series was developed specifically for maximum throughput applications using less than 1 ml of sample. On the other hand, our U-Visc models fully comply with ASTM D445 and provide fully automatic, unattended operation. Finally, our BitUVisc instruments were tailored to cover the most taxing applications and are capable of automatically testing extremely viscous samples such as additives, asphalts, HFO, fuels, lubricants, crude oils, waxes and other Newtonian fluids..

Our products are used for environmental control, water and wastewater treatment, agriculture, food and beverage quality and safety control, energy industry, and pharmaceutical and biochemical applications.

Lumex Instruments offers more than 120 applications for the measurement of organic and inorganic chemicals in liquid, solid and gas. offer both traditional and new ingenious solutions, unique technologies and classical equipment, well-established reliable applications and innovative methods. From the beginning of the company, have developed, manufactured and sold more than 20,000 instruments..