Raymarine i40 Depth Pack, with P7 Depth Through Hull TransducerRaymarine i40 Depth Pack, with P7 Depth Through Hull Transducer Complete with plastic thru hull transducer and 10M cable. Crystal clear depth readout Shallow and deep anchor alarms Minimum depth display Compact Digital Displays Big displays for smaller powerboats, yachts and RIBs, these compact yet powerful SeaTalk instrument displays offer full integration with Raymarine autopilots and navigation equipment and can be surface or trunnion mounted.