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- Overview
The Cetacean Research™ CRT-90N series Hydrophones is a preamplified high sensitivity hydrophone. It is specifically designed for whale watching and recreational use. It can also be used for basic research tasks.
The integral cable is specifically designed with a special low noise configuration and has a durable polyurethane jacket for prolonged exposure to underwater saltwater conditions. It is more flexible than other cables on the market in order to maintain optimum usability. Standard length is 10m or 30m, or custom lengths are available upon request.
| SPECIFICATIONS | |
| Linear Frequency Range (±3dB) [kHz] | 0.015 – 52 |
| Useable Frequency Range (+3/-12dB) [kHz] | 0.005 – 70 |
| Transducer Sensitivity [dB, re 1V/μPa] | -195 |
| Preamplifier Gain [dB] | 30 |
| Effective Sensitivity [dB, re 1V/μPa]* | -165 |
| SPL Equiv. Noise at 1kHz [dB, re 1μPa/√Hz] | 43 |
| Power Requirement [Vdc] | 2.4 to 5.5 Plugin power 24v or 48v phantom power |
| RMS Overload Acoustic Pressure [dB, re 1μPa] | 157 (plugin power) 170 (phantom power) |
| Maximum Operating Depth [m] | 500 |
| Operating Temperature Range [ºC] | -40 to 85 |
| Dimensions [mm] | 79mm x 24mm (L x W) |
| Dry-end Connector | 3.5mm stereo plug or XLR |
| Directionality | Omni. below 10khz |
| Integral weight and material | 75 gram; 316 Stainless |
