First marketed in 1978, this instrument analyzes ozone in air samples. Ozone is an air pollutant created by chemical reactions that occur between oxides of nitrogen and volatile organic compounds in the presence of sunlight.

Beckman Instruments, Inc. became interested in measuring, controlling, and fighting air pollution in the late 1940s and early 1950s, when company president Arnold O. Beckman became the scientific adviser to the Los Angeles Chamber of Commerce’s Air Pollution Control Officer. Many of the instruments that were developed by Beckman Instruments in the 1940s and 1950s as standalone items became incorporated into or re-purposed as smog-fighting systems.