Garmin GSD 24 2kW-50/200KHz Sounder Module

Garmin

$593.23 
SKU: GA-0100095700-SW

GSD 24, MFG# 010-00957-00, Digital Black Box Network Sounder, 600-2000 Watts (transducer dependent), 50/200KHz. Transducer sold separately. 8 Pin