ASD Inc.The SeaSpec spectroradiometer from Analytical Spectral Devices Inc. can be submerged to provide the radiance and irradiance measurements required by the bio-optics community. This dual-CCD instrument employs two spectrometers that provide a spectral range from 380 to 900 nm. Unlike bandpass radiometers that supply just a few spectral bands, SeaSpec's spectrometers provide continuous spectra, allowing the user to model information received from the sensor. The device features autonomous operation and power management, which allows it to be deployed from a float or buoy.See full productRelated content from Photonics MediaPRODUCTSBioPhotonics May/Jun 2023 IssueBandpass FiltersThe ADVANTECH™ hard coat bandpass filters from Andover Corp. offer steep slopes, high light transmission, durability, and long life for demanding applications. 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