Specifications include, but are not limited to: Multibeam Sonar (REF: 510 PackBot) Helmet and pole mountable Real-time imaging data Minimum range: 0.2 meters (m) -120m Ninety-seven (97) hertz (Hz) update rate Seven-hundred twenty (720) kilohertz (kHz) sonar-beam operating frequency Five-hundred twelve (512) beams Minimum angular resolution: 1.0° acoustic, .25° effective 8 millimeter (mm) range resolution Speed of sound sensor Temperature rating: -10°C to 35°C (operating), -20° - 50°C (storage) Depth rated to 350m Vertical beam width 20° (±10° about horizontal axis) Update rate 5 - 97Hz (range dependent) Ability to be viewed in real time by surface personnel Allows hands-free operation by the diver.