The Bruel and Kjaer 8103 is a laboratory grade hydrophone. Originally designed for laboratory and industrial use, it is capable of detecting frequencies between 0.1Hz to 180kHz with extreme sensitivity. If you want absolute detail across a vast frequency range, then this is the hydrophone for you.
Please note that this is a laboratory grade instrument and as such is not suitable for use in conditions where it may get knocked or handled roughly. It is very easily damaged. We will need to see evidence of appropriate insurance before confirming rental of this item.