Acousonde™ 3A

Acousande 3A Features & Specifications

The Acousonde™ 3A is s self-contained underwater acoustic recorder. Contains options for one or two hydrophones, sensors (for attitude, orientation, depth and temperature), a digital recorder, and a field-replaceable battery.

Attaches to a subject with suction cups or by other means. The Acousonde™ 3A measures the subject's sound environment as well as potentially associated behavior. Other options include deploying the instrument as an autonomous recorder suspended from a cable, placed on the seafloor, or housed in a remotely-operated vehicle.

Application examples include assessing the impact of noise on marine wildlife, and study vocalization behavior of the tagged subject.

Features:

• Depth sensor, 500 m (-500m suffix), 2000 m (-2km), or 3000 m (-3km)
• Cylindrical encapsulation
• (4) 64 GB storage cards, total 256 GB nominal/unformatted storage capacity
• Full-speed USB data offloading, approximately 3.3 GB/hour
• Internal low-power hydrophone for frequencies up to 9.2 kHz
• Switchable acoustic gain of 0 or 20 dB
• Low-power hydrophone saturation nominal 187 dB re 1 µPa 0-pk (0-dB gain)
• Automatic anti-alias filter, can be bypassed
• 3D accelerometer, 10-bit resolution, 2g full-scale
• 3D compass
• Internal temperature sensor
• Powered from A-size lithium primary cell (1 cell included)
• Built-in battery pressure housing
• Includes one USB-A to MicroUSB cable