Frankstar Release Hook is independently developed and patented by SEA Research Institute. This purely mechanical release device is designed for autonomous deployment of underwater survey equipment. It has been successfully deployed for submersible marker launching aboard research vessels including Xue Long, Dong Fang Hong 2, Hai Da and Zhang Jian.
Constructed with heat-treated and reinforced 316L stainless steel, the fully mechanical structure delivers outstanding reliability under extreme marine environments. It serves as essential equipment for releasing deep-sea survey markers and seabed observatory bases during oceanographic missions.
