C55 series hydrophones
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The Cetacean Research™ C55 and C55RS models are preamplified, cylindrical hydrophones designed for the detection of infrasonic, audible, and ultrasonic sounds. In addition to typical underwater use, these hydrophones can also be used for the detection of airborne and subterranean sounds and vibrations. The C55 and C55RS hydrophones include an integral connector and are encapsulated in a very rugged polyurethane material. The hydrophones are not individually calibrated but calibrated frequency response measurements can be performed on request.
Shielded Cable Length [m]
- mating connector molded to 15, 30, or 50 [m] shielded cable
- other lengths available on a custom order basis
- cable includes Integral Connector rated to a depth of 7,000 meters.
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Battery / Connector box
Battery boxes are rated NEMA-4X water resistant. Standard signal connection for the Cetacean Research™ C55 hydrophone is through a watertight female BNC connector with gold center contact.
The hydrophones are powered by one or two 9V batteries (not included) or an optional long-life rechargeable, external power supply.
| Signal Output |
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Female BNC connector |
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| Battery Life [hours] |
> 20 |
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| Box Dimensions [mm] |
98 long x 64 wide x 40 high |
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Directionality
- omnidirectional below 10kHz;
- very directional at high frequencies (e.g., ~15º solid angle at 200 kHz,
 3dB);
- directionality focused in a plane.
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