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LISST-200X

Particle and sediment sensor holding calibration FOR LIFE! The LISST-200X is Sequoia’s workhorse. It is a self-contained submersible laser...

LISST-Horizon

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

Hyber-bb

Hyper-bb

Sequoia presents the world’s first commercially available hyperspectral backscatter instrument – Hyper-bb. The Hyper-bb is a submersible...

LISST-AOBS

LISST-AOBS Super-Turbidity Sensor

The LISST-AOBS Super-Turbidity sensor is a patent pending, simple, low-cost sensor to measure suspended sediment concentration (SSC). Super-Turbidity...

LISST-Black - covered

LISST-Black

Integrated, self-contained instrumentation package The LISST-Black is a self-contained, stand-alone instrument system for use on profiling packages,...

LISST-HAB - covered

LISST-HAB

Harmful algae bloom (HAB) instrument The LISST-HAB is a self-contained, stand-alone instrument system for use on profiling packages, towed and...

LISST-Tau

LISST-Tau

Optical Transmission and Beam Attenuation LISST-Tau is a high-precision transmissometer for underwater vehicles, profiling packages, CTDs, and...

Hyper-a full view

Hyper-a

In-situ absorption meter based on the integrating sphere principle. The Hyper-a is designed for precision, in-situ bulk absorption measurements...

LISST-Glider

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...

LISST-100X

All LISST-100X service and accessories will be discontinued 1/1/2022. Read more here. The LISST-100X has been superseded by LISST-200X.  

LISST-ABS

LISST-ABS

Low-cost acoustic sensor directly measuring Suspended Sediment Concentration (SSC) at a point. Integrates easily with existing dataloggers or...

LISST-Holo Digital Holographic Imaging System

LISST-Holo2

The LISST-Holo2 stores holograms for study of flocs, plankton, and other particles in water. Holograms are captured at up to 25 Hz. The instrument...

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 Sequoia’s 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 is a 4,000 m rated version of Sequoia’s LISST-200X workhorse. The LISST-Deep generally has the same capabilities...

LISST-StreamSide

This product has been discontinued. All support for the LISST-StreamSide has ended as of 3rd April 2023. The LISST-StreamSide was developed specifically...

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

All LISST-STX service and accessories will be discontinued 1/1/2022. Read more here. The LISST-STX is DISCONTINUED.    

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 by optical...

LISST-25X

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

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

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...