• The Cetacean Research™ CRT-90N series Hydrophones is a preamplified high sensitivity hydrophone. It is specifically designed for whale watching and recreational use. It can also be used for basic research tasks. The integral cable is specifically designed with a special low noise configuration and has a durable polyurethane jacket for prolonged exposure to underwater saltwater conditions. It is more flexible than other cables on the market in order to maintain optimum usability. Standard length is 10m or
  • The Cetacean Research™ CRT-90N series Hydrophones is a preamplified high sensitivity hydrophone. It is specifically designed for whale watching and recreational use. The integral cable is specifically designed with a special low noise configuration and has a durable polyurethane jacket for prolonged exposure to underwater saltwater conditions. It is more flexible than other cables on the market in order to maintain optimum usability. Standard length is 10m or 30m, or custom lengths.
  • CRT-70P Heavy Duty Hydrophone Starter System photo with hydrophone, zoom f3 recorder
  • CRT-70P Heavy Duty Hydrophone complete System photo with hydrophone, zoom f3 recorder, rugged water blocked kevlar reinforced polyurethane cable, preamplifier, microsd memory card, hard shell waterproof storage case, bluetooth transmitter, cables, safety wrist lanyard, 12v charger block
  • CRT-70P Heavy Duty Hydrophone advanced System photo with hydrophone, zoom f3 recorder, rugged water blocked kevlar reinforced polyurethane cable, preamplifier, microsd memory card, hard shell waterproof storage case, bluetooth transmitter, cables, safety wrist lanyard, 12v charger block, spectradaq-200 data acquisition sound card, hydrowav-lt software analysis
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CRT-70P Heavy Duty

CRT-70P Heavy Duty

Kit Options (see below for itemized description)
Cable length
Protection Cage
16GB Memory Card
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Key Features:

  • See User Guide
CRT-70P Heavy Duty Specifications & User Guide PDF Document (Opens in new tab)
Sample Audio Recordings Listen in Media Gallery