Deep Development Corp.'s Underwater Detection Unit (UDU) is designed to provide high definition sonar imagery in a rapidly deployable, fully integrated package. With a range of 450 feet, the UDU provides sonar imagery similar to that of medical ultrasound equipment. An optional underwater hailing system is also available that allows for one-way communication with a diver or underwater threat. The UDU is a fully integrated, turnkey sonar designed for use in underwater security operations, dive monitoring, search and recovery, inspection, and subsurface biological research. Available in two configurations, the UDU can be permanently mounted to a surface vessel or packaged in a portable hard case so it can be easily transported by a single person.