"Turner Designs Cyclops-7 chlorophyll fluorometer"@en . . "SDN:L22::TOOL0365" . "A high performance, in-situ fluorometer with 470 nm excitation filter and 685 nm emission filter which detects chlorophyll-a. It has a minimum detection limit of 0.025 ug/L and a dynamic range of 0-500 ug/L. The instrument can be used at depths of up to 600 m and in water temperatures of -2 to 50 degC."@en . .