The current FarSounder-500 and FarSounder-1000 designs are limited to 50 meters (~150 feet) maximum depth. This is a design choice that was made because most vessels that have a draft of more than 50 meters are usually called ship wrecks (a little sonar engineer humor). The core technology is very flexible and can be customized to meet other needs if greater than 50 meters depth is required.