OCISense 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.


This has led to the development of OCISense, an outstanding sensor characterised by its compacity and ease of integration. Based on state-of-the-art non-dispersive infrared (NDIR) technology, OCISense demonstrates Olythe’s determination to offer superior accuracy and reliability in sensor technology.



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.

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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.


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