Ultrasonic transducer:

Standard transducer

Ultrasonic transducer:

Standard transducer

Our classics – quickly available in proven quality

Our standard transducers are quickly available, cost-effective and optimized for classic ultrasonic applications. No waiting time. No compromise on quality.
  • Available at short notice – stock items,
    dispatch within a few working days
  • Tried and tested in practice – proven transducer design, decades of trouble-free use in the field
  • Cost-effective – cheaper than a customized solution or new development
  • Large selection – frequencies from 80 kHz to 500 kHz in various designs
  • Versatile – perfect for many classic ultrasonic applications across the industry

Why standard transducers from SECO Sensor?

Our proven standard transducers are optimized for use in numerous classic ultrasonic applications, such as presence detection, distance measurement or level measurement. We manufacture in stable processes and large quantities. Our combination of high-quality materials and an experienced team of experts enables us to produce ultrasonic transducers of the highest quality.

High-quality materials – for outstanding quality

Our aim is to build high-quality, durable and robust ultrasonic transducers with outstanding electro-acoustic properties. We pay particular attention to the four main components: piezo disk, matching material, potting compound and stranded wire. With many years of experience, we manufacture our own material for this or source it from reliable suppliers with the highest quality standards. In this way, we ensure that our customers receive only the best products – with every ultrasonic transducer that leaves our company.

Piezo disk

We source our piezoceramic transducers from selected suppliers with above-average quality standards. Our main German supplier manufactures a material specially specified for us. This is characterized by a high degree of efficiency as well as minimal geometric and electrical tolerances.

Matching material

We produce our matching material in-house according to our own proven recipes. To achieve the best possible results, we use a particularly light, pressure-resistant epoxy filled with hollow glass beads, which is subject to only minimal fluctuations compared to products from external suppliers.

Potting compound

Potting with our specially formulated, soft-elastic polyurethane foams gives your transducer both mechanical stability and excellent structure-borne sound suppression – especially in cold conditions. We use customized potting compound recipes to achieve optimum acoustic parameters, adapted to your requirements.

Stranded wire

We mainly assemble our coaxial, Teflon and PVC strands ourselves. This enables us to ensure the highest quality and implement customer-specific adaptations quickly and easily. Short delivery times are also possible for special sizes. Our direct access to the production process allows us to carry out close checks and ensure consistently high strand quality, e.g. in accordance with IPC-A-610, class 3.

Our experienced team – for your success

For us, our employees are more than just anonymous cogwheels. Our corporate culture is characterized by flat hierarchies and open, respectful communication. Together, we manufacture ultrasonic transducers of outstanding quality with great expertise. Your satisfaction is our goal – we work on it every day.

For us, this means

Customer-oriented support

  • Individual support
  • Close cooperation
  • Constructive communication
  • Personal contact person
  • Reliable accessibility

Qualified team of experts

  • Comprehensive support for your product
  • All-round technical support
  • Excellently trained experts
  • Development of new solutions
  • Customization, small quantities

Machine-supported manual work

  • Narrowly tolerated production parameters
  • High process stability
  • comprehensively trained employees
  • Final test on 100% of the transducers
  • ISO 9001:2015 & ISO14001:2015

“We develop an innovative solution for almost every measuring task. Individual support and intensive discussions with our customers are particularly important to us. From the initial idea to prototype construction and series production, we rely on a close exchange of ideas and qualified technical advice.”

Eugen Gergert, Managing Director of SECO Sensor

“For offshore systems, we also equip our anemometer transducers with an optional scratch-resistant, water and dirt-repellent protective coating. This prevents droplet formation on the surface and icing of the front surface.”

Portrait Stefan Schneider - SECO Sensor

“SECO Sensor is increasing its presence on social media. Contact and networking via LinkedIn and online channels is also increasing. However, traditional trade fair visits, personal customer appointments and technical workshops for maintaining existing customers and acquiring new customers are just as important to us.”

Portrait Lisa Loidolt - SECO Sensor

“Our direct access to the production process allows us to carry out close checks and guarantees consistently high quality.”

Portrait Ralph Schenderlein - SECO Sensor

Standard? Customized standard?

Which solution suits your project?


  • Standard ultrasonic transducers –
    Your instant solution
  • Typical delivery time
  • Cost framework
  • Flexibility

  • Ideal for

  • Application examples

  • Standard ultrasonic transducers –
    Your instant solution
  • approx. 1 – 2 weeks
  • – proven standard
    – extensive portfolio
    – multi-use transducer
    – focused transducers
    – pulsed transducers
  • – “classic” applications
    – rapid replacement
    – first series of tests
  • Our classics for distance measurement, level measurement, presence monitoring

  • Customized ultrasonic transducers – individualized
  • approx. 2 – 4 weeks
  • €€
  • Adaptation of:
    – housing
    – contacting
    – additional equipment
    – potting compound
  • – existing customer housing
    – difficult installation situations
    – extreme environmental conditions
  • Transducer with heating and EMC coating in customized housing

Technical highlights

Housing e.g. metal screen, brass sleeve, customer housing
Contacting e.g. coaxial cable, Teflon strands, pins, solder pads
Working range 2 cm – 8 m (depending on model)
Frequency 80 kHz – 500 kHz (extended range on request)
Operating temperature -25°C to +70°C (extended range on request)

Would you like technical advice?

Do you have any questions or need individual advice?

Our standard transducers are proven in numerous classic ultrasonic applications – cost-effective and quickly available. Do you need support in selecting the perfect transducer?

We look forward to your inquiry.

Your contact Managing Director Eugen Gergert from SECO Sensor

Eugen Gergert

Managing Director

Further information

Standard transducers from SECO Sensor – precision meets versatility

SECO Sensor offers a comprehensive range of standard transducers specially developed for applications in air and gaseous media. These ultrasonic transducers are characterized by their robustness and reliability, even under difficult conditions such as dust, fog or darkness.

The product range includes three types of standard transducers.

  • Multi-use transducer Compact all-rounders with high echo voltage and large beam width . They are ideal for applications with short to medium ranges.
  • Focused transducers: Ideal for long ranges thanks to a well-focused sound beam and small beam width. They offer high quality and echo voltage, which makes them particularly suitable for precise measurement tasks.
  • Pulsed transducers: Specialists for fast measurements at close range with a very high repetition rate and short ringout time.

SECO standard transducers cover frequency ranges from 80 to 500 kHz and, depending on the type, achieve ranges from a few centimetres to several meters. Thanks to their modular design and optional adaptations, they can be flexibly adapted to specific sensor requirements.

With almost 30 years of experience in the development and production of ultrasonic transducers, SECO Sensor stands for quality “Made in Germany”. The standard transducers are available immediately and offer a cost-effective solution for a wide range of industrial applications. Discover the world of standard transducers from SECO Sensor and find the optimal solution for your measuring task.