This SM2 hydrophone is for use with the SM2+. It comes with a 20 metre cable and can be used with the SM2+ Terrestrial Acoustic Recorder or the SM2BAT+.
* Length: 6.35 cm (2.5")
* Diameter: 1.9 cm (0.75")
* Sensitivity: -165 dB re: 1V/uPa
* Frequency response: 2 Hz to 40 kHz (flat to +/- 1dB)