Passive Acoustic Monitoring (PAM)

 RESEA is a 4-input underwater acoustic recorder designed to enable PAM operators, Marine Mammal Observers (MMO) and Protected Species Observers (PSO) to implement powerful post-processing monitoring (up to 500 kHz bandwidth; over a 100 dB dynamic range). 

 RUBHY is a Wi-Fi remotely-controlled buoy offering a range of applications in the field of underwater noise measurements.
It acquires data from 2 wide-band hydrophones and simultaneously sends and displays real-time noise information such as SEL, SPL and 3rd octave band levels within a 10 km range. 

 COSTOF2 is a one-of-a-kind multisensor datalogger developed jointly with Ifremer for surface or deep sea oceanographic purposes (down to 6000m). COSTOF2 can host numerous sensors with up to 12 sensors able to work simultaneously, supporting various protocols such as Ethernet or RS232/ 485/ 422. 

TRIPOD is a seabed hydrophone structure hosting 4 hydrophones and one RESEA underwater acoustic recorder.

In this regard, it can be used as a simple deployment frame, but also allows for trajectography and sound propagation analysis.

 REMHY is a Wi-Fi surface buoy that leads the way to a new range of application for underwater noise measurements. It can simultaneously acquire data from 4 wide-band hydrophones of variable cable length. This buoy accepts both passive and preamplified active hydrophones and its wide band analog input allows up to 1 MHz with a dynamic range greater than 100 dB therefore guaranteeing an efficient signal to noise ratio. The embedded digital signal processor allows high speed acquisition filtering while users can stream data and launch or stop recordings up to a distance of 700 m. 

  Lying on the seabed of coastal waters, the multisensor station SYSENSE is capable of monitoring inshore works in real-time, displaying acoustic and water quality parameters at the surface. Underwater noise, salinity, turbidity or water depth indicate the impact that works have on local wildlife, in order to conduct them in a sustainable way.