SonarBell is an omni-directional,  fully passive sonar reflector that provides a strong and clear double echo return.

No batteries or electronics are used in SonarBell and therefore no maintenance is required.

SonarBell can be designed to provide a required Target Strength at the frequency band to be used.

Applications for SonarBell within the many sectors in which it could be deployed include Location Marking, Asset Marking, Testing and Sonar Performance checking.