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Sequoia Scientific

Environmental

Environmental monitoring often requires real-time measurements of parameter in the field under often challenging conditions. Measuring particles in particular requires measurements done very close in time to water sampling: As soon as the water is taken out of its original environment and placed into a sample bottle it is already beginning to change; particles settling to the bottom and possibly clumping together. When these samples are later processed they need to be mixed very hard or even ultrasonicated to bring the samples into solution to measure particle size and concentration. Now the particles are not the same as they were in the original environment. Sequoia’s portable and field deployable instrumentation allow measurements to be made immediately after sampling (LISST-Portable|XR) or automatically on a regular schedule (LISST-ABS). Please click on the instruments below for more information.


LISST-200X

Sediment sensor holding calibration FOR LIFE! The LISST-200X marks a major advance in technology of our workhorse LISST-100X submersible laser-diffraction...

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-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-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 is...

LISST-BLACK

Oil-spill response instrument The LISST-BLACK is a self-contained, stand-alone instrument system for use on profiling packages, towed and remote...

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-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,...

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...