Preventive Maintenance with Ultrasound

In most factories, regular preventive maintenance is performed to reduce machine failures, increase plant availability and to save energy costs. With the multi-purpose ultrasonic testing devices of the SONAPHONE family, many of these tasks can be carried out quickly and efficiently. The operation is simple and extensive trainings are no longer needed. 

Get in Touch!

The SONAPHONE devices detect leakages in compressed air, gas and vacuum systems. They reliably inspect bearings, the functioning of valves as well as steam traps and detect electrical partial discharges on medium or high-voltage equipment. By applying an ultrasonic transmitter the SONAPHONE devices can also be used for tightness testing of cabins, hatch covers, containers and other unpressurized systems. 

Ultrasonic Testing Devices for Predictive Maintenance


Digital Ultrasonic Testing Device for Maintenance 4.0


Software Environment and Application Apps


Acoustic camera for leak detection and electrical inspection


Compact Ultrasonic Testing Device for Preventive Maintenance


Adjustable ultrasonic transmitter for the reliable detection of leaks

Ultrasonic Transducers

For Preventive Maintenance

Sensorbox S-SB10

Stationary Sensorbox for Online Monitoring of Processes and Machines

Applications for Preventive Maintenance

Ultrasonic leak detection with SONAPHONE and BS10 sensor

Ultrasonic Leak Detection

Reduction of Energy Costs for Compressed Air by up to 30 Percent


Recognize Bearing Damage early and optimize Bearing Lubrication



Stationary condition monitoring of machines, systems, and processes.

ultrasonic steam trap testing with ultrasonic testing device sonaphone

Steam Trap & Valve Inspection

Reduce Energy Costs for generating Steam by up to 20 Percent and increase Process Stability


Detect Partial Discharges at an early Stage and increase operational Reliability

Ultrasonic tightness testing at a car with ultrasonic testing device and sensor

Tightness Testing

Detection of Leaks & Seal Failures on Windows, Doors, Cabinets, Vehicles & Containers

Press Releases

In search of strong partnerships in Scandinavia

SONOTEC brings powerful combination of hardware and software for preventive maintenance to Sweden

Read more

The Startup Pill ranks SONOTEC in best list

The Startup Pill has listed SONOTEC GmbH on the "101 best German-based Test & Measurement Startups"…

Read more


No news available.

Contact Us!

We will be happy to help you.

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


Do you have any questions?

Feel free to contact us! We will be happy to help you.

Florian Starnitzky

Sales Manager ǀ Preventive Maintenance
+49 345 13317-837