Manufacturer of subsea data loggers including sensors as depth/pressure, temperature, salinity/conductivity, tilt angle, acceleration, compass heading and fish heart rate. Starmon logger series offer fast sampling & response, large memory, long life replaceable and rechargeable battery. Ruggedly designed for use on moorings and subsea gear. DST series are small loggers used for ocean and gear monitoring and fish physiology and behavior studies. CTD available as an online sensor, connecting to AUV/ROV.