RKI is partnered with Riken Keiki Company, Ltd., the world leader in gas detection and sensor technologies.

RKI Instruments, Inc. is an innovative gas detection company located in Union City, California. RKI was established in 1994 by Bob Pellissier and Sandra Gallagher with the belief that customers and distributors deserve a reliable source for advanced gas detection equipment as well as solutions to specific gas monitoring applications.

RKI is partnered with Riken Keiki Co. Ltd., the world leader in gas detection and sensor technologies. In business for over 80 years, Riken has sold over 1,800,000 portable and fixed gas monitors worldwide with annual sales exceeding $220 million. They have over 700 employees, a large number of which are engineers and scientists. RKI is the exclusive North American supplier of Riken products.

Every year, RKI has continued to achieve a high level of growth which is attributed to our sales and support of Riken products and the ability to develop our own line of products around Riken’s long lasting sensors. This capability of sales, support, and development is made possible by our seasoned professionals. Each RKI employee has an average of 14 years of gas detection experience, and the top 8 executives combined industry experience totals over 240 years.

This combination of quality products and knowledgeable supportive people provides you with the ability and opportunity to confidently face almost any gas monitoring application, with equipment built to last. When you call RKI, you will get solutions and answers to your gas detection needs. RKI is ISO 9001 certified.

RKI provides Gas Detection for Life. Not only will our equipment protect your life and property from the hazards of gases and vapors, but with proper care, it may also be the last gas detector you will ever need to purchase.