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GeoSpectrum M4 Hydrophone
A compact, high frequency hydrophone with an operating depth greater than 2500 m. Designed for continuous immersion in isoparaffinic fluids and water. Low cost in high volumes.
The M4 hydrophone is a low cost hydrophone when produced in high volumes. It is designed for immersion in hydrocarbons, but will maintain its high lead resistance after months of immersion in sea water.
It is available in a package that couples acoustic pressure to the hydrophone, but decouples it from mechanical forces, making it ideal for use in solid-core or gel-filled streamers.