Simrad PI Spread/Depth sensor


The PI Spread/Depth sensor is designed for pelagic and bottom trawls. It can be used on single and twin trawls, but must be paired with a PI Remote or PI Remote/Depth sensor.

  1. The PI Spread/Depth sensor is mounted on the port trawl door
  2. The PI Remote (or PI Remote/Depth) sensor is mounted on the starboard trawl door
  3. The PI Spread/Depth sensor communicates with the PI system on the vessel. It provides both door spread and depth information
  4. Using the transverse communication link, the two sensors measure the physical distance between the trawl doors
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