Arne Bjørnvold AS Sandnessjøen, Norway General Inquiries Torolv Kveldulvsonsgt.39, 8800 Sandnessjøen Norway +47 75 04 02 18 +47 75 04 06 40 Sales Catch monitoring sensors Catch monitoring systems Echo sounder transducers Fish-finding echo sounders Fish-finding sonars Hydroacoustic trigger systems Trawl sonars