Optical Transmission and Beam Attenuation LISST-Tau is a high-precision transmissometer for underwater vehicles, profiling packages, CTDs, and other systems. With high-quality optics and a carefully selected LED source, it transmits a collimated beam...
Particle and sediment sensor holding calibration FOR LIFE! The LISST-200X is Sequoia’s workhorse. It is a self-contained submersible laser...
The LISST-Horizon is a self-contained instrument for bench-top deployment in a research vessel laboratory. Plumbed to continuous underway uncontaminated...
Sequoia presents the world’s first commercially available hyperspectral backscatter instrument – Hyper-bb. The Hyper-bb is a submersible...
13th July 2022: We now have secured limited parts for the LISST-AOBS and are taking orders for the instruments. We anticipate that we have enough...
Integrated, self-contained instrumentation package The LISST-Black is a self-contained, stand-alone instrument system for use on profiling packages,...
Harmful algae bloom (HAB) instrument The LISST-HAB is a self-contained, stand-alone instrument system for use on profiling packages, towed and...
Optical Transmission and Beam Attenuation LISST-Tau is a high-precision transmissometer for underwater vehicles, profiling packages, CTDs, and...
The LISST-Glider is a version of the LISST-200X designed for glider integration on a Teledyne Webb Research’s SLOCUM G2 and G3 glider. The...
All LISST-100X service and accessories will be discontinued 1/1/2022. Read more here. The LISST-100X has been superseded by LISST-200X.
13th July 2022: We now have secured limited parts for the LISST-ABS and are taking orders for the instruments. We anticipate that we have enough...
The LISST-Holo2 stores holograms for study of flocs, plankton, and other particles in water. Holograms are captured at up to 25Hz. The instrument...
The LISST-Portable|XR is the world’s first and only battery powered, portable, low-cost particle size analyzer. It can be used in the field,...
The LISST-SL2 is Sequoia’s most powerful multi-parameter river sediment monitoring instrument. Delivers real-time Point-Integrated, Depth-Integrated,...
The LISST-Deep instrument measures in-situ particle size distribution, optical transmission, and the optical volume scattering function(VSF)...
This product has been discontinued. The LISST-StreamSide was developed specifically for monitoring applications, for example sediment monitoring...
The LISST-Infinite has been discontinued as of May 2019. Sequoia now offers the LISST-ABS, LISST-200X and LISST-Portable|XR for hydropower applications....
The LISST-Hydro has been discontinued as of May 2019. Sequoia now offers the LISST-ABS, LISST-200X, and LISST-Portable|XR for hydropower applications.
All LISST-STX service and accessories will be discontinued 1/1/2022. Read more here. The LISST-STX is DISCONTINUED.
World’s first autonomous, submersible instrument for measuring the volume scattering function (VSF) of water with depolarization. Measures...
The LISST-STOKES from Sequoia is the world’s first commercially available submersible instrument for measuring the depolarization ratio in...
The Volume Scattering Function The optical Volume Scattering Function (VSF) is an inherent optical property of water that is used by optical...
The LISST-25X has been discontinued. No support of any kind is available for the LISST-25X. If you are looking for a low-cost sensor for measuring...
FlowControl-Lab has been discontinued and will no longer be manufactured. Existing units are still supported. If you are interested in a FlowControl,...
FlowControl-Sub is a microprocessor-controlled fully submersible 3-way valve system for use in flow-through applications on profiling platforms...
EcoLight-S(ubroutine) is an extremely fast RTE (radiative transfer equation) solver developed for use as the optical component of coupled physical-biological-optical...
The HydroLight radiative transfer numerical model computes radiance distributions and related quantities (irradiances, reflectances, diffuse...