Astronaut Alexander Gerst has taken our METAMAX® 3B to the ISS.

Last summer, the German astronaut Alexander Gerst embarked on a research trip on the ISS. This was the first time a mobile spiroergometry device had been launched into space. During six months, Alexander Gerst used the METAMAX® 3B to determine the impact of the space journey on the human organism. Not only the launch into space is exhausting. Being in orbit, the fitness changes and the journey back to earth is often more exhausting than the beginning.

The project which is accompanied by the Institute of Aerospace of the TU Dresden is not just about assessing astronaut's fitness level. The results of the experiment will help to optimally prepare
future space tourists on their flight into space. 

Highlights of the METAMAX® 3B

  • ultralight, mobile Breath-by-Breath system (580 g)

  • telemetric range of over 1,000 m (bi-directional telemetry with Bluetooth® technology)

  • chest and back carrying system

  • convenient control via Smart Control, laptop or as stand-alone

  • 6-hour battery life

  • 400 hours data storage

  • constant dynamic flow control

  • free definable audio signals


Whether in snow and ice at temperatures of down to 10 ° C below zero, or in the desert at temperatures up to 40 ° C, the METAMAX® 3B is insensitive to extreme outside temperatures.


With a weight of just under 600 g, the METAMAX® 3B is the lightest mobile
spiroergometer on the market. This is a decisive advantage in many disciplines, because in field tests, the total weight of the subject increases only minimally and has little influence on your test results.


The burden of firefighters in action is difficult to simulate in the lab. When heat, stress, respiratory protection, high weight of the equipment and other effects come together, it is particularly important to measure their influence on the subject in combination.

Spiroergometry -

On your Conditions

The METAMAX® 3B can be operated in various ways, either with a laptop, the Smart Control or completely autonomously. Just synchronize the recorded test data with the application software MetaSoft® Studio.

To determine the velocity and location of a test person in a field test the METAMAX® 3B uses a powerful GPS module. The module allows you to calculate velocity and altitude changes and gives an objective picture of the person's stress factors during a field test.

Swim Option for METAMAX® 3B

Benefit from the performance diagnostics through spiroergometry also in swimming. With the specially developed Swim Option for METAMAX® 3B, CORTEX enables exact performance physiological examinations even in water.

The highlights:

  • suitable for a flow channel, pool and open water
  • ergonomically designed special snorkels for freestyle and backstroke swimming with an integrated saliva suction device and splash-water protection
  • integrated heart rate module with 5 kHz technology under water and Bluetooth® communication over water
  • waterproof, shockproof transport case
  • 12-hour operating time using battery option

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Performance Package


The METAMAX® 3B already comes with the most widely used hardware and software options in the area of sports and preventive medicine. It also includes the CORTEX GPS module and a stationary kit for optimal use of the METAMAX® 3B in a laboratory with an external electricity supply. Furthermore, the package includes a calibration kit and a larger supply of consumables.

Service Package


The service package includes all consumables (calibration gas, O2 sensors etc.) for the first three years. It gives you planning reliability for your projects and test studies thanks to an extended warranty period of three years. In addition, your operating costs are much lower by purchasing the service package.

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© CORTEX Biophysik GmbH Walter-Köhn-Str. 2d 04356 Leipzig/Germany Tel: +49 341 - 487 49-0 info@cortex-medical.de

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