Ultrasonic Flow and Bubble Sensors for Liquids

Non-contact liquid measurement on rigid and flexible tubing plays an important role in a large number of applications with highest sterility and hygiene requirements and purity demands.

Non-invasive flow meters and air bubble detectors are key components in the semiconductor industry, in bioprocessing applications, and are widely used in medical technologies.

Product Portfolio

Non-contact liquid flow measurement with SONOFLOW® and SEMIFLOW® sensors

Flow-Bubble Sensor SONOFLOW CO.56 Pro V2.0

Combined flow measurement and air bubble detection with SONOFLOW® CO.56 and SONOFLOW® CO.56 Pro sensors

Contactless air bubble detection with SONOCHECK® sensors

Non-invasive level monitoring of liquids in medtech and industrial applications

Detecting smallest amounts of blood in clear liquids with the blood leak detector BLD

Areas of Application

Non-contact flow meters & bubble detectors for bioprocessing applications

Non-contact flow sensors & bubble detectors for the semiconductor industry

Non-invasive ultrasonic sensors for medical technology

Expertise

Flow Sensor Selection Guide to select the right sensor for the specific application

Scientific publications of non-contact ultrasonic flow and bubble sensors

Moving image content about ultrasonic clamp-on flow meters

Latest press releases of the business unit "Non-Invasive Fluid Monitoring"

Customer Opinions and Reviews on our ultrasonic sensors

Liquid Flow Measurement

High-precision SONOFLOW and SEMIFLOW flow sensors are used for non-contact liquid flow monitoring. They measure and control flow velocities, flow rates, and flow volume as well as dosing processes.

Air Bubble Detection

Sensors in the SONOCHECK ABD series are designed for contact-free air bubble detection in liquid-filled tubes. They also assume tasks for full / empty monitoring.

Calibration Service & Repair

To maintain the original performance and accuracy of our products, we recommend recalibrating our sensors every 12 months. In addition to recalibrating our flow sensors, we offer safety inspections and repair services for all our ultrasonic products.

Press Releases

09.04.2026

Unique sensor for flow measurement enhanced with air bubble detection and AI features

At the INTERPHEX, the world’s leading exhibition for biotechnology, SONOTEC will present its…

SONOTEC provides impulses at 15th VDI-Forum in Magdeburg (copyright Viktoria Kühne)

08.04.2026

VDI-Forum Business & Science in Magdeburg: SONOTEC Provides Impulses with Presentation

On March 26, 2026 representatives from research, industry, and politics came together at the 15th…

Events

15.04.2026

ISPE South Central Chapter Annual Technology Show

April 15, 2026 - Montgomery (Texas), USA

Visit us at booth #56

21.04.2026

INTERPHEX

April 21 - 23, 2026 - New York, USA

Visit us at booth #2801

23.04.2026

European CMP and WET User Group Meeting

April 23 - 24, 2026 - Halle (Saale), Germany

Visit us in the exhibition area

We will be happy to help you.

For more information regarding applications and pricing, please feel free to contact us.

Receiver: sensors@sonotec.de

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Stefanie Schmidt

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Non-Invasive Fluid Monitoring

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Ultrasonic Flow and Bubble Sensors for Liquids

Product Portfolio

Ultrasonic Flow Meter for Liquids

Ultrasonic Flow-Bubble Sensor

Ultrasonic Bubble Detector

Level Detection Sensor

Blood Leak Detector

Areas of Application

Biotechnology

Semiconductor

Medical Technology

Expertise

Sensor Selection

Publications

Videos & Tutorials

Press Releases

Customer Reviews

Liquid Flow Measurement

Air Bubble Detection

Calibration Service & Repair

Press Releases

Unique sensor for flow measurement enhanced with air bubble detection and AI features

VDI-Forum Business & Science in Magdeburg: SONOTEC Provides Impulses with Presentation

Events

ISPE South Central Chapter Annual Technology Show

INTERPHEX

European CMP and WET User Group Meeting

Contact Us!

We will be happy to help you.

Do you have any questions?

Stefanie Schmidt