the CR1 is
an excellent
multi-purpose
hydrophone.
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The Cetacean Research™ model CR1 hydrophone is an excellent multi-purpose hydrophone. Various uses are detection & recording of very loud signals, listening & recording of quieter sounds like cetaceans, whale watching operations, and terrestrial applications.
- This non-preamplified hydrophone is ideal for the detection and recording of very loud signals; such as those from pile driving, air guns, or underwater demolition operations.
- In addition, the CR1 can be used with an external preamplifier (such as the ART USB Dual Pre) for recording and listening to the quieter sounds of cetaceans and other underwater sources.
- The CR1 also serves very well as a robust hydrophone for whale watching operations when used directly with the Crate TX15 amplified speaker.
- Terrestrial applications for the CR1 include vibration detection and using it as a geophone.
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The hydrophone comes with an extra tough polyurethane-jacketed coaxial cable. The cables can be terminated with either BNC or mono phone plug connectors. All CR1 hydrophones are individually spot calibrated at the factory.
closeup of the C1 hydrophone
The Cetacean Research™ CR1 is an excellent multi-purpose hydrophone.
plot of Cetacean Research™ CR1 Hydrophone Frequency Response
Cetacean Research™ CR1 Hydrophone Beam Pattern
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input impedance, such as the 
