Amazon Humminbird  
18-02-2018 10:32 pm
Humminbird 409950-1KVD Helix 9 SI GPS KVD Finders
9 inch wvga display
Side imaging. Standard Sonar Coverage: 20°, 60° & (2) 85° @ -10db (Total of 180°)
Dual beam sonar. Standard Sonar Frequency: 50*/200/83/455/800* kHz
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