Sound velocity sensor AQSV-1500
- AQUAMATIC, Denmark
- http://www.aquamatic.dk/AQSV1.htm

Parametric Difference Waves for Low Frequency Acoustic Propagation
- Unclassified/commercial mind control technology.
- http://www.raven1.net/uncom.htm#AERIA

Ultrasonic Translator SK-207 (Transtronic)
- Electronic kit. Hear car brakes, gas leaks or even bats.
- http://www.xtronics.com/Kits/SK-207.htm

Thin Film Ultrasonic Transducer for Accurate Control of Fastener Clamp Load
- NASA (USA)
- http://sbir.gsfc.nasa.gov/SBIR/successes/ss/089text.html

Ultrasonic/Contact Stethoscope
- The 2047U/C combines the features of a standard electronic stethoscope - with those of an ultrasonic (sounds higher in frequency than the ear can hear) detector.
- http://www.tscm.com/mlk2047.html

Ultrasonic Blaster
- sonic shockwaves
- http://www.amazing1.com/ultra.htm

Cavitation energy meter (ppb, Inc.)
- Meters energy and frequency in ultrasonic and megasonic cleaning tanks used in the semiconductor, wafer, disk drive, flat-panel display, electronics and parts precision cleaning industries.
- http://www.megasonics.com/