em-tec Markets

For more than 30 years,

em-tec has been at the forefront of flow measurement technology, developing state-of-the-art and solution-oriented flow meters for the medical and bioprocessing markets. Learn more about our markets and applications using the cards below.

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Medical blood flow sensor Medical blood flow sensor

SonoTT™ Clamp-On SL

The SonoTT™ Clamp-On SL clasps flexible tubes using a simple click-fasting. The ultrasonic flow sensor is hygienic and its function is based on the ultrasonic transit time method, meaning it measures without needing contact to the medium. 

Please note: Not all products are available and approved in every country. Please contact your local distributor if you have any questions.


Flexible, non-invasive flow measurement on tubing systems in extracorporeal circuits.

Established fields of application for extracorporeal tubing systems are:

  • Heart-lung machines (HLM)
  • Extracorporeal membrane oxygenation (ECMO)
  • Organ perfusion
  • Left or right ventricular bypasses
  • Cardiopulmonary support/ bypasses
  • Venous extracorporeal support for liver transplantation
  • Shunts
  • Monitoring of the perfusion of extremities
  • Research and development

Through a customer-specific sensor configuration and an electronic evaluation device, the flow measurement function can also be integrated into an existing medical product (e.g. HLM, ECMO, dialysis).

Key Facts

  • Simple click-fasting for an uncomplicated application on flexible tubes and tubing systems
  • Waterproof design to enable surface disinfection and re-usability
  • Customer-specific calibration for maximum measurement accuracy (temperature, medium, tube material)
  • Up to seven calibration tables per sensor for the highest possible flexibility
  • Numerous sensors for all common medical tube sizes

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