 "Fairweather" has two Kongsberg Gruppen multibeam echosounders, models EM710 and EM2040.Her four survey launches have Kongsberg EM2040 multibeam echosounders.In addition, "Fairweather" can tow an L3/Klein System 5000 sidescan sonar, and her launches can be equipped with additional hull-mounted L3/Klein System 5000 sidescan sonars.