Raymarine E26009 plastic thru-hull transducer for water depth. Short version in P7 housing with 9 m cable.
This transducer is compatible with:
ST40, ST60+ and i40, i50 in SeaTalk1 network
ST70, ST70+ and i70 in SeaTalkng network
This transducer is included as standard in i40 Depth and i40 Bidata sets.