Transducer Adapter Cable f/P72, P79, GT15 & GT30 for echoMAP(TM) CHIRPConnect a Garmin GT30 transom mount scanning transducer and a Garmin GT15M-IH, Airmar P72 or Airmar P79 in-hull mount traditional transducer to a compatible echoMAP(TM) CHIRP chartplotter/sonar combo.This adapter cable allows the echoMAP CHIRP to continue to display water depth from the in-hull transducer in instances when the transom mount transducer loses depth reading due to cavitation.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.