Makes noise in the sensitive hearing range of seals at 10-20khz. Loudest noisemaker on the market at 195dB re 1uPa @1m rms, with peaks at 197dB (peak to peak output can be misleading, however this figure is 204dB). Dual tones allows for a wide range of simultaneous sounds to keep the sound novel. All transducers tested in water at Neptune Sonar’s facility before shipping. 50m effective deterrent range (see papers in documents section of website - however these studies use the lower volume US2). Compatible with fish motion detector triggers and seal sonar triggers to reduce noise pollution and increase targeted scramming.
Overview: The standard US3 transducer offers a high volume, randomized dual tone sound pattern that is highly effective at deterring marine predators. Can be used as a continuous or triggered noisemaker.
Randomised pattern of sound spreading noise from 2-6khz outside the sensitive hearing range of cetaceans but inside the range of seals
In-water tested to spec
- Internal batteries to ensure optimal output
- Compatible with all triggering systems
The low frequency transducer offers a high volume, randomized sound pattern that is highly effective at deterring marine predators while avoiding habituation or threshold shift in non target species such as cetaceans (see documents - thomas Goetz' thesis 2008). Can be used as a continuous or triggered noisemaker.