RAYMARINE Element 12 HV, Lighthouse Chart, No Transducer Element 12 HV, MFG# E70536-00-102, Chartplotter/Sonar with 12 in LCD, internal GPS, LightHouse N. America charts, 200/350/1200kHz Hypervision Sonar with DownVision, SideVision, and RealVision 3D. Transducer sold separately.