This hydrophone is ideal for the detection and recording of loud underwater signals. Examples of such loud sources include close-range dolphin echolocation, high-power sonar, large pile drivers, air gun arrays, and underwater explosions.
Unlike most hydrophones, the CR2 hydrophone transducer is made from a material that is virtually indestructible. The hydrophones are molded to an extra tough polyurethane-jacketed coaxial cable.
The cables can be terminated with either BNC or mono phone plug connectors. CR2 matches perfectly with any of our DAQ modules.
Hydrophones are not individually calibrated. Calibrated frequency response measurements can be performed upon request.

Linear Frequency Range (±3dB) [kHz] 0.002 to 28
Useable Frequency Range (+3/-20dB) [kHz] 0.0002 to 250
(Requires a preamplifier with 100MOhm input impedance)
Sensitivity [dB, re 1V/µPa] -214
Preamplifier Gain [dB] N/A (no built-in preamplifier)
SPL Equiv. Self Noise at 1kHz [dB, re 1µPa] 68
Power Requirement [Vdc] N/A
RMS Overload Acoustic Pressure [dB, re 1µPa] N/A
Maximum Operating Depth [m] 460
Operating Temperature Range [ºC] -40 to +70
Capacitance [nF] 0.82
Dimensions [mm] 56 Length x 14 Diameter
Coaxial Cable Length 10 meters cable terminated with male BNC or mono phone plug connector (longer cable optional)
Directionality Omnidirectional below 10kHz

CR2 Hydrophone

CR2 Hydrophone Frequency Reponse

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