Over the years SAMS has developed scores of different landers for biogeochemical seafloor investigations, including chamber, profiling and eddy landers. We have also developed a range of in situ instruments including novel sensors for the detection and quantification of specific molecules, two-way telemetry data links, high compression slow scan video imagery, ultra-clean platforms for trace metal studies, environmentally controlled benthic chambers, and active control of in situ experiments in near real time.