OCISense Breath
NDIR Gas Sensor


Miniaturized infrared spectroscopy breath sensor: A French know-how.


The miniature breath infrared spectroscopy sensor represents the cutting edge of French expertise, showcasing the result of years of innovative research and development by Olythe. With a commitment to excellence and a passion for advancement, Olythe has pioneered the creation of OCISense, an exceptional sensor that embodies the pinnacle of technological innovation.


OCISense stands out for its remarkable compactness and seamless integration capabilities. Designed with precision and engineered for efficiency, this sensor sets a new standard in breath analysis technology. Leveraging state-of-the-art non-dispersive infrared (NDIR) technology, OCISense exemplifies Olythe’s unwavering dedication to delivering unparalleled accuracy and reliability in sensor technology.


From conception to realization, Olythe has spared no effort in ensuring that OCISense exceeds expectations and redefines what is possible in breath analysis instrumentation. In essence, OCISense is more than just a sensor; it is a symbol of innovation and expertise, poised to revolutionize the field of breath analysis.



Unlocking the power of infrared spectroscopy for breath analysis


Years of research and development have led to the mastery, adaptation and miniaturisation of infrared spectroscopy technology. At Olythe, we’ve harnessed this expertise to bring a compact yet powerful solution for breath analysis. Our advanced infrared spectrometer offers unrivalled accuracy and reliability in the measurement of volatile organic compounds (VOCs), providing accurate information for breath air quality and health diagnostics.


OCISense utilizes cutting-edge infrared technology to detect and quantify VOCs present in exhaled air. With a specific focus on analyzing molecules of interest, our sensor’s measuring cuvette exposes the gas sample to infrared radiation. As molecules absorb radiation, the optical signal weakens—a phenomenon ruled by the Beer-Lambert law. This meticulous process guarantees precise gas concentration measurements, empowering you with actionable data for a multitude of applications.

Our types of breath gas sensors

Discover all our non-dispersive infrared gas sensors dedicated to breath analysis


Our expertise: breath analysis

The patented breath analysis system developed by Olythe guarantees precise and reliable results comparable to those obtained by law enforcement’s breathalyzers.

The exhaled air is sent into a measuring tank traversed by infrared radiation produced by the optical transmitter. Part of the radiation is absorbed by the molecules present in the tank enabling a precise calculation of the concentration.

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Mastery of production and manufacturing

All of our sensors are manufactured entirely in France in our own production unit. This allows us to have total control over our know-how.

Our sensor


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