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ac-s Spectral Absorption and Attenuation Sensor

Based on the venerable ac-9, the ac-s offers almost an order of magnitude increase in spectral resolution of in-situ absorption and beam attenuation. The 4 nm resolution allows for spectral "fingerprinting" and deconvolution analysis.

  • Approximately 80 wavelength outputs

  • High resolution

  • Field-proven flow-through system

Sea-Bird Scientific has discontinued the ac-9 transmissometer but will continue providing service and support for a limited time:

  • End of Best Effort Service: December 31, 2020

  • Calibration only Service: December 31, 2021

Trade-In Offer

While the ac-9 cannot be upgraded to an ac-s, Sea-Bird Scientific is offering a Trade-In Program to provide you with an opportunity to improve your measurement capability.
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