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LISST-200X

This model supersedes the LISST-100X. The LISST-200X marks a major advance in technology of our workhorse LISST-100X submersible laser-diffraction...

LISST-Horizon

The LISST-Horizon is a self-contained instrument for bench-top deployment in a research vessel laboratory. Plumbed to continuous underway uncontaminated...

LISST-Glider

The LISST-Glider is a version of the LISST-200X designed for glider integration. The LISST-Glider has the same specifications and performance...

LISST-100X

This product is superseded by LISST-200X. The LISST-100X is a submersible multi-parameter system for in-situ observations of particle size distribution...

LISST-ABS

This is a low-cost sensor designed specifically for measuring Suspended Sediment Concentration at a point. It represents an advance over turbidity...

LISST-Holo Digital Holographic Imaging System

LISST-Holo2

The LISST-Holo2, introduced in 2017, stores holograms for study of flocs, plankton, and other particles in water. It is an advanced successor...

LISST-Portable|XR with ultrasonic probe inserted

LISST-Portable|XR

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,...

LISST-SL2

The LISST-SL2 is a our most powerful multi-parameter river sediment monitoring instrument. Delivers real-time Point-Integrated, Depth-Integrated,...

LISST-Deep promo photo

LISST-Deep

The LISST-Deep instrument obtains in-situ measurements of particle size distribution, optical transmission, and the optical volume scattering...

LISST-StreamSide

This product has been discontinued and replaced by LISST-HYDRO. The LISST-StreamSide is developed specifically for monitoring applications,...

LISST-Infinite

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....

LISST-Hydro Open

LISST-Hydro

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.  

LISST-STX

The LISST-STX is a submersible field instrument developed for in-situ observation of the size-dependent settling velocity distribution of suspended...

LISST-VSF Detail

LISST-VSF

World’s first autonomous, submersible instrument for measuring the volume scattering function (VSF) of water with depolarization. Measures...

LISST-STOKES

The LISST-STOKES from Sequoia is the world’s first commercially available submersible instrument for measuring the depolarization ratio in...

Optical VSF Sensors

The Volume Scattering Function The optical Volume Scattering Function(VSF) is an ‘inherent optical property’ of water that is used...

LISST-25X

The LISST-25X has been discontinued. Because it requires electronic parts and operating systems that are no longer available, existing units...

FlowControl-Lab

FlowControl-Lab

FlowControl-Lab is a computer-controlled 3-way valve system for use in flow-through applications on board research vessels or for dock-side sampling. The...

FlowControl-Sub

FlowControl-Sub

FlowControl-Sub is a microprocessor-controlled fully submersible 3-way valve system for use in flow-through applications on profiling platforms...

EcoLight-S

EcoLight-S(ubroutine) is an extremely fast RTE (radiative transfer equation) solver developed for use as the optical component of coupled physical-biological-optical...

HydroLight

The HydroLight radiative transfer numerical model computes radiance distributions and related quantities (irradiances, reflectances, diffuse...