Garmin Striker Vivid 7CV with GT20-TM Transducer GPS Fish Finder with Industry-leading Sonar Part #:
Troll & Find Side Mount Kit for Garmin Striker 4 and Garmin - Etsy Finland
Amazon.com: JOYWEE FF688C 3.5" Phiradar Color LCD Boat Fish Finder 200KHz/83KHz Dual Sonar Frequency 80M 240ft Detection Muti-language Auto zoom : Electronics