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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

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

LISST-ABS

LISST-ABS

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...

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...

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

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...

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-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 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...