Frequency Range [kHz] 0.020 to 50 and over
Transducer Sensitivity* [dB, re 1V/µPa]: -194
Preamplifier Gain [dB]: 25
Effective Sensitivity* [dB, re 1V/µPa]: -169
SPL Equiv. Self Noise at 1kHz [dB, re 1µPa/√Hz] 44
Power Requirement [Vdc] 2 to 5
RMS Overload Acoustic Pressure [dB, re 1µPa] 154
Maximum Operating Depth [m] 100
Operating Temperature Range [°C] -25 to 60
Dimensions [mm] 70 L x 32 dia.
Shielded Cable Length [m]
cable includes 3.5mm stereo phone plug 10 or 30
Directionality omnidirectional below 10kHz
Battery / Connector box N/A **
* Transducer Sensitivity + Preamplifier Gain = Effective Sensitivity.
** powered by most of the plug-in powered microphone inputs, such as the Zoom F1 digital recorder
The SQ26-08 must be used with a recording device or preamplifier that has a bias powered (a.k.a. plug-in powered) microphone input with a voltage below 5V. Minijack connector, stereo format, with same signal on both channels.
General cetacean research
Educational outreach programs
Capturing the sounds of the natural underwater environment for eco-art
Adding underwater sound to video recordings