Decarbonise your thermal engine vehicles

With our FluidBox Solutions

Our Aix-based company


SP3H is an innovative cleantech company based in Aix-en-Provence, at the Technopôle de l’Arbois. Thanks to 18 years of research and development, it has become the world’s leading supplier of highly miniaturised, connected and intelligent optical scanners. In 2022, the FluidBox device was marketed and approved for the heavy goods vehicle and passenger transport (bus and coach) markets.

Our FluidBox solutions promote the deployment of new generations of cleaner fuels, e-fuels and synthetic fuels, for both professional and private users, to meet current and future environmental challenges.

Carbon neutrality by 2050


SP3H is undergoing rapid expansion and growth, initially focused on the industrial and transport vehicle market. The company is now launching its developments in the automotive and aviation markets, in collaboration with major players in the sector. The easy-to-install FluidBOX offers a low-capex solution for retrofitting 300 million vehicles in Europe. This approach aligns SP3H perfectly with the mobility and transport sector’s goal of carbon neutrality by 2050, representing a significant market opportunity while supporting sustainable development initiatives.

Biofuels / Efuels


As part of the energy transition towards carbon-neutral transport by 2050, SP3H is one of the key players offering the technological means to guarantee that every vehicle using biofuels and Efuels achieves the performance it needs to provide an immediate alternative for everyone in the future energy mix.

Applications & market

Transports & machinery


Road, non-road, marine, rail, aerospace, farm machinery, power generation.

Industrial Markets


Chemical and food processing.

Oil and gas


Refining and petrochemical industries.


Capteur FluidBox V2 de SP3H analyseur embarqué


Discover the new “V2” version of our FluidBox sensor! 🔍

SP3H is proud to show you pictures of our first new version of our FluidBox Micro, in the idyllic setting of the Technopôle de l’environnement de l’Arbois. 🌿

Today, we’re offering a more robust version with a 100% SP3H design, making it easier to install in vehicles as well as increasing the capacity of our mass production runs. 🚚📈


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The Human factor


L'USINE NOUVELLE | 01/03/24 | PUBLISCOPIE AUTOMOTIVE SPECIAL : an intelligent on-board sensor to guarantee the origin of fuel

“In a world where the energy transition has become a priority, the French company SP3H stands out for its revolutionary innovation: the FluidBox sensor. This intelligent IR (infrared) sensor, capable of scanning the DNA of fuels, allows the virtuous introduction of alternative fuels to replace fossil fuels…”

TRUCKEDITIONS.COM | 05/12/23 | Focus on Innovation: retrofit as seen by SP3H with ID-FUEL

“The I-nnovations Awards 2023 at Solutrans saw the emergence of a small, easy-to-install “full technology” box that could well be found on a large number of “retrofitted” trucks, particularly in transport companies that choose to run on biofuels, in order to initiate a “soft” energy transition for their entity…”

TRM24 | 12/05/23 | Scania France pleads for a “real, realistic and profitable” energy transition

“Scania France has approved and can take orders for the B100 Exclusif on its trucks equipped with 5-cylinder 9.3-litre 320 and 360hp engines as well as on the 6-cylinder DC13 Super of 460 and 500hp. The solution is Franco-French since the equipment supplier is the French SME SP3H and the vehicles are instrumented at the Scania adaptation and preparation center in Angers.”

LE MONITEUR | 06/04/23 | Alain Lunati of SP3H

“At 56, the founder of the French start-up SP3H uses his experience in petrochemicals to develop breakthrough technological innovations in the service of decarbonization. (…)”

BFM BUSINESS | 08/02/23 | SP3H develops a sensor analyzing thermal engines in real time

“This Wednesday, February 8, Alain Lunati, CEO and founder of SP3H, returned to the analysis of fuel quality from scanners, in the Tech & Co program presented by François Sorel.”

BFM MARSEILLE | 09/02/23 | It's Tech BB! : New fuels: we stock up on solutions

“Focus on new fuels: How do they work? How are they made? Where do they come from ?
Meet Green Systems Automotives, which equips boats and motorcycles with kits so that the tanks can be filled with biofuels & SP3H, which has developed optical sensors capable of analyzing the composition of fuels.”

L'AUTOMOBILE MAGAZINE | 28/03/23 | Thermal ban in Europe: an essential box for buying new cars from 2035?

“The Provençal company designs boxes for real-time analysis of the molecular structure of most organic fluids with an infrared scanner. If its customers are mainly refiners (metrology) and the heavy transport sector (construction sites, trucks), why not imagine this technical solution in cars?(…)”

GOMET MEDIA | 17/02/23 | [Transport] SP3H (Aix) on the way to decarbonize the thermal car

“In 2022, the Aix nugget SP3H made the first sales of its miniature optical sensor to truck manufacturers. It wants to support the development of “biofuels”, and is now interested in a colossal market; that of the thermal car. After 18 years of existence, including 15 years of R&D, the company SP3H, located at the Technopôle…”