Net instruments

Simrad ITI is a complete wireless trawl positioning and monitoring system designed to improve control and efficiency in pelagic and bottom trawling.The system allows the skipper to monitor the exact position of the gear and what is happening in and around the trawl,providing crucial information for effective,profitable and responsible fishing. Seawater Switch
The FLTrawl Link had anOn/Off switch that was activated by pressure when submerged making it a veryenergy efficient unit. This mechanical device sparked the idea for the switch devices, which form part of Simrads net sensors today. (The first electronic seawater switch - 1979.) The Catch Indicator
Acatch indicator was required to measure how full the net was. Simradestablished a research team who realised that the mesh opening in the codend would change depending on how full it was. With this knowledge, the team created a small device that utilised rubber connected to a sensor,which measured the holes and became the first ever catch indicator.