How do I choose the best hydrophone for my use and my money?


In the past fifteen years we have listened to tens of users.
Everyone has his own story and experience and plan.
We gave hydrophones to people going at sea to chase sperm whales for a movie, to people using sensors in a pool of oil, to girls going to ponds to count frogs.

Choosing the best hydrophone for your money is not that easy.
Answering some questions below can help us in understanding what you need.
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I will use it for my personal enjoyment, maybe I will let other people listen to sounds via a loudspeaker I am a professional user in the media field. I work for a whale watching company. I work in the science fied and would like to have a sensitive and wideband instrument.

I am interested in what I can hear. I need a wideband instrument. I am interested in low frequencies. I have very peculiar interests. I am interested in very loud signals.

I do not want to spend more than 200 euros. I can spend up to 500 euros. I can spend up to 1500 euros. I can spend up to 3000 euros. I can spend more than 3000 euros.

I will use it in a lab or in freshwater. I will use it from a zodiac. I will use it from a sailing boat, stopping when deployed. I will use it from a sailing boat towing it whenever possible. I will use it from a reasearch ship.

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