"Smartfin temperature sensor"@en . . "SDN:L22::TOOL1638" . "Smartfin is a surfboard fin with integrated research grade ocean health sensors. Integrated sensors currently include temperature, motion, and GPS sensors (pH, oxygen, algae, and water clarity sensors could be added in future). It has applications in large scale citizen science and funded research projects. The external sensor is on the tip of the fin. There is also an internal sensor on the motherboard in the centre of the fin. The external sensor is more accurate and has a quicker response than the internal sensor."@en . .