Electrical apparatus, namely, signal conditioning unit for physical sensor signal conditioning; electronical apparatus, namely, signal conditioning unit for physical sensor signal conditioning; optical apparatus, namely, laser-based sensor device for transduction of physical signal; acoustical apparatus, namely, acoustic meters; equipment and instruments for measuring, namely, data acquisition and storage hardware; equipment and instruments for metering, namely, spectral analysis hardware; equipment and instruments for recording, namely, device for acquisition of acoustic data; equipment and instruments for monitoring, namely, device for analysis and interpretation of acoustic sensor data based on hardware; equipment and instruments for testing, namely, ultrasound emitting or receiving hardware; equipment and instruments for controlling, namely, laser driver unit; ultrasound transmitting and receiving apparatus, namely, ultrasound probes for non-medical use; electric and electronic apparatus and installations for process control engineering, namely, ultrasound generating or receiving hardware; apparatus for the non-destructive testing of materials, namely, ultrasound generating or receiving hardware; ultrasound testing apparatus, namely, ultrasound detectors for non-destructive materials testing; apparatus for detecting and measuring sound and vibrations, namely, sound meters and vibration meters; laser-based apparatus, namely, microphones, optical and optoacoustical microphones, hydrophones, optical and optoacoustical hydrophones, for detecting and measuring sound and vibrations; optoacoustic components and assemblies, namely, microphones, optical and optoacoustical microphones, hydrophones, optical and optoacoustical hydrophones; optocouplers; apparatus for recording, broadcasting, transmission, reception, reproduction, processing and analysis of sounds and/or signals, namely, microphones, optical and optoacoustical microphones, hydrophones, optical and optoacoustical hydrophones, tape recorders, amplifiers, audio receivers, decoders and encoders for audio signals, integrated circuits and semi-conductors, loudspeakers, transducers, infrared transmitters and receivers, audio frequency generators, computer software and computer hardware for controlling microphones and hydrophones, computer software and computer hardware for recording, storing and analysing signals from microphones and hydrophones; laser-based apparatus for recording, broadcasting, transmission, reception, reproduction, processing and analysis of sounds and/or signals, namely, microphones, optical and optoacoustical microphones, hydrophones, optical and optoacoustical hydrophones, tape recorders, amplifiers, audio receivers, decoders and encoders for audio signals, integrated circuits and semi-conductors, loudspeakers, transducers, infrared transmitters and receivers, audio frequency generators, computer software and computer hardware for controlling microphones and hydrophones, computer software and computer hardware for recording, storing and analysing signals from microphones and hydrophones; communications devices and installations thereof, namely, microphones, optical and optoacoustical microphones, hydrophones, optical and optoacoustical hydrophones; microphones and hydrophones without membrane; electronical, optical, optoacoustical and optoelectronical sensors and sensor arrangements in the nature of optical cavities having arrangements of mirrors that form standing wave cavity resonators for light waves; laser-based electronical, optical, optoacoustical optoelectronical sensors and sensor arrangements, namely, ultrasound emitter and receiver; photoacoustic and optoacoustic devices for industrial imaging, namely, non-medical imaging devices for non-destructive materials testing

Organization and conducting of educational conferences, training, courses, lectures, seminars and workshops concerning the following: microphones, optical and optoacoustical microphones, hydrophones, and optical or optoacoustical hydrophones, microphones and hydrophones without membrane electronical, optical, photoacoustic, optoacoustical and optoelectronical sensors and sensor arrangements, and laser-based sensors and sensor arrangements

Scientific and technological consultancy, namely, consulting in the field of scientific research and development in the field of acoustics, laser technology, microphones, hydrophones, loudspeakers, sensor technology, microphones and hydrophones without membrane and laser-based apparatus; industrial analysis, for others, in the field of acoustics, laser technology, microphones, hydrophones, loudspeakers, sensor technology, microphones and hydrophones without membrane and laser-based apparatus, to allow non-destructive testing of materials; consultancy, namely, technological consultation in the technology field of process time or cost optimization for use in process control; consulting in the field of acoustics, namely, acoustic and photoacoustic emission analysis for scientific purposes; consulting services, namely, testing, analysis and evaluation of sensor characterization to analyze an industrial process using active or passive acoustic emission analysis techniques; consulting services, namely, testing, analysis and evaluation of medical imaging devices to optimize ultrasound-based imaging