Specifications include, but are not limited to: 2 EA Hydrophone. All lines furnish only. All lines 1-4 must be compatible and work as a single unit. Brand: Ocean Sonics or Equal. Model: SJ9-ETH or Equal. Hydrophone: * Hydrophone Capable of Interfacing with LUMCOM's Environmental Monitoring Station via an Ethernet Cable. * Frequency Range: 10Hz to 200 KHz * Depth Rating: Minimum 50m * Sensitivity: 173 dB re V/uPa * Peak Output: 180 dB re uPa * Sample Rate: Variable, but must be able to accommodate Sample Rates of 48 and 96 KHz * Minimum Resolution: 24 bit. Connection: * Communication Interface: Ethernet Cable * Web Server Interface: TCP * Streaming Data Protocol: TCP/UDP; 2 EA 5m extension/200m depth rr. All lines furnish only. All lines 1-4 must be compatible and work as a single unit. Brand: Ocean Sonics Or Equal. Model: C2-8F8-5-EXT or Equal. * Length: 5m-30m * Depth Rating: 50m Minimum; 2 EA Hydrophone Guard. All lines furnish only. All lines 1-4 must be compatible and work as a single unit. Guard: Brand: Ocean Sonics or Equal. Model: Guard-SJ. *Guard must be compatible with Hydrophone Bidding.