Instrument: WET Labs AC-S in-situ spectrophotometer

The WET Labs {Sea-Bird WETLabs} AC-S in-situ spectrophotometer is based on the AC-9 flow-through sensor offering increased spectral resolution of in-situ absorption and beam attenuation. The AC-S can have 80 (+/- 5) wavelength outputs with a range of 400-730 nm. The AC-S consists of a 10 or 25-centimeter (cm) pathlength, a 4-nanometer (nm) resolution, an accuracy of 0.001 - 10 m-1, an operational temperature range of 0 - 30 degrees Celsius, and an operational depth rating of 500 meters.