When one Digi-Troll&trade unit is connected to a Digi-Troll™ transducer, other units can be interphased with the master unit using this relay interphase cable. This allows all Digi-Troll™ units connected to the master unit to independently operate the bottom tracking feature, while only using one transducer.
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NGK Spark Plug (BPZ8H-N-10) (816837Q) - Mercury
ALPHA ONE GEN 2 BELLOWS ASSY (816431A1) - Mercury
Cannon Optimum Electric Downrigger 




