ABOUT US2020-09-15T11:34:25+02:00

cosinuss° – the vital sign company

About us - Headquater in Munich

About us

Support healthcare without limits in time and location.

Who we are

Cosinuss GmbH is a certified medical technology company based in Munich that specializes in mobile, real-time monitoring of all vital parameters. For this purpose, the highly innovative team develops its own in-ear sensors, mini-computers, algorithms and software.

More than 11 years of research and development provide a solid foundation of the company. Numerous patents and medically-certified products (presumably 2020) make cosinuss° a pioneer in the mobile monitoring area. Core applications include professional e-health care, occupational safety and high-performance sports.

With cosinuss°, the ear becomes a central interface in a world of mobile health.

What drives us

The healthcare industry is facing a major transformation and we want to be a part of it. We are convinced that vital-sign sensors can make a significant contribution to preventative healthcare by improving the diagnosis, treatment and rehabilitation of patients. Our technology can be the heart of a better healthcare system.

What we offer

cosinuss° can take vital parameter supervision to a whole new level. Our ergonomic wearables offer a more cost-effective and accurate alternative to the competition for measuring the following key vital signs:

  • Core Body Temperature
  • Heart Rate
  • Arterial Oxygen Saturation
  • Respiratory Rate

We process incoming data with smart algorithms, machine learning and pattern recognition to generate customer-defined results. Secure and flexible data management rounds off our comprehensive monitoring solution.


Quality and Safety of cosinuss° products

The development, manufacturing and distribution of medical devices requires a specific company structure that enables the quality and safety of the product to be met in accordance with the regulatory requirements for medical products. The specific requirements for a Quality Management System are specified by the European Directives for Medical Devices (MDD, MDR) through the harmonized standard EN ISO 13485:2016.

For this purpose, cosinuss° has defined appropriate internal processes and established an ISO 13485-compliant Quality Management System covering design and development as well as production and distribution of monitoring devices of vital physiological parameters. The Quality Management System is audited regularly by the accredited Notified Body TÜV Süd to proof its functionality according to the harmonized standard EN ISO 13485:2016. The current certificate can be downloaded here: cosinuss-certificate-EN ISO 13485:2016.pdf

Moreover, the ISO certification is also the basis for CE approval for medical products of class IIa. cosinuss° is currently undergoing the conformity assessment procedure according to MDD Annex II without (4).


Technology, Research and Development

Greta and Johannes founded cosinuss° in September 2011 based on the findings of the PhD work of Johannes, which focused on developing the first wearable medical devices for home use.

Starting in the field of research and enabling technology, cosinuss° provided in the very beginnings research institutions and companies who care about the health of their customers, with enabling technology.

The first consumer product, cosinuss° One, was introduced to the market in mid 2016. The °One is a performance tracker for professional athletes to balance health and performance, health being the critical driver of performance. Since then, it found its way into professional areas of triathlon, Formula 1 racing, sailing, motorsports, fire fighters and swimming.

Greta Kreuzer, Johannes Kreuzer - cosinuss° Gründer

In 2017, cosinuss° started a successful Kickstarter campaign to launch its second consumer product, degree°. degree° is a smart digital fever assistant that continuously measures core body temperature of the child and helps parents making decisions based on it.

Further solutions and enabling technology is in development/available for:

  • Remote patient monitoring
  • COPD monitoring
  • Home Health solutions
  • mHealth solutions
  • In-clinic patient monitoring

Our Vision

Empowering people to manage their health and fitness at home.

Providing enabling technology for companies who share our vision and developing own complete solutions for selected health issues.


Enabling Individual mHealth Solutions

cosinuss° builds high precision in-ear sensors that continuously capture relevant vital signs in every day life. Because individual vital signs data is the essential component to create individual health insights. Only accurate data can be the basis of that.

Our Team

Getting things done

We are a team of highly motivated electrical engineers, data scientists, designers and marketers who deeply believe in the great potential of the earconnectTM technology of cosinuss° and who are determined to bring this technology to the people.

Johannes Kreuzer
Johannes KreuzerCEO
An experienced medical engineer, father and guitar fanatic on a mission to use his God-given gifts to help others by creating meaningful things.
Greta Kreuzer
Greta KreuzerCEO
An entrepreneur by heart, mother and perfectionist. Greta loves to create new things and to manage our innovations on- and offline.
Tim Adams
Tim AdamsDevelopment
A scientist by heart, perfectionist and proud father, Tim uses his brains to bring the sensing ability of our devices to perfection.
Leo Lorenz
Leo LorenzConstruction
A passionate electrical engineer with lots of experience that he uses to constantly improve products. Leo is also father, tea drinker and an archer.
Zinaida Todorova
Zinaida TodorovaProcess Engineer
Leading process engineering and quality management to more efficient processes.
Gerrit Schweiger
Gerrit SchweigerDesign and Marketing
The Design Guru himself, creating awesome things. Great design, art, food and ease are his passion.
Incinur Zellhuber
Incinur ZellhuberBusiness Development
Experimental scientist by training, insatiably curious by nature. Inci loves endurance sports, good coffee and innovative technologies that offer meaningful solutions for health. Now focusing her energy to foster B2B business growth.
Melanie Baldinger
Melanie BaldingerProject Manager
As a Sport Scientist and Ergonomist Melanie is taking care of all kinds of research projects and scientific studies. She loves all kinds of sports and being outdoors.
Melanie Schade
Melanie SchadeOnline Marketing
As a communication scientist and online marketing expert Melanie takes care of our website. When she's not picking lettuce from her own greenhouse, you can probably find her either at the sewing machine or jogging.
Dallida Bentele
Dallida BenteleSupport
She is the right hand. A mother and the high spirits in person with an Italian temperament. You will want to call our support more often just to talk to her.
Dietmar Bentele
Dietmar BentelePurchase and Sales
Coming soon
Axel Heinrich
Axel HeinrichData engineer
Axel left Siemens to work for cosinuss°. A Basketball player/trainer at heart, he loves to work in the field of sports & health.
Andrew Parsons
Andrew ParsonsEmbedded Software
Software engineer from the Silicon Valley. A cheery character always on the hunt for fixing Bugs.
Felix Koneberg
Felix KonebergSoftware Development
Coming soon
David Biegger
David BieggerProject Engineer
David not only takes care of our prototypes as project engineer, but also of his ultimate frisbee career and climbing the Alps.
Ralph Heim
Ralph HeimMedical engineer
Observance of quality management processes and regulatory affairs of medical wearables.
Thomas Höller
Thomas HöllerElectrical engineer
Thomas is an electrical engineer, fitness lover and pizza and noodles stasher. From South Tyrol, not Italy!
Nikolai Orlovius
Nikolai OrloviusSoftware Developer
Working Student responsible for software developing in Python, HTML and JavaScript.
Arian Gohari
Arian GohariApp Development
Cross platform development in Flutter. The young uncut diamond of app programming.
Osama Alhartani
Osama AlhartaniApp Development
Clara Piris
Clara PirisData engineer
Working Student responsible for accelerometer analysis, data validation and mediterranean flavour.
Sophie Wagner
Sophie WagnerMedical engineer
Working student responsible for algorithms and machine learning.
Leonie Adams
Leonie AdamsContent Marketing
coming soon
Alexis Long
Alexis LongElectrical Engineer
Coming soon
Kilian McDonald
Kilian McDonaldMedical Engineer
Coming soon
Ralf Weiss
Ralf WeissMaster Student
Coming soon

Job Offerings

Working Students

We like you to assist us developing a next generation of mobile health wearables.

Upcoming Events


We developed a new patented and medically recognized technology using unique algorithms and engineering. Our technology is already in use for wearables in professional sports, medical industry and work safety.


We are working with world-class universities, respected medical centers and health-tech designers to develop the very best in-ear monitoring technology. The cosinuss° technology is already in use in preemptive pediatric clinics, during heart surgeries, in Allied Health Centers and Body Temperature and Fluid Labs.

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