Business Details
31 Years
experience
Advanced Particle Measurement Solutions for Environmental Research
Since 1995, Sequoia Scientific has pioneered submersible and field measurement technologies for suspended particles and particle size distributions. Our LISST series of aquatic science sensors revolutionized ocean and freshwater research, with thousands of instruments deployed globally. Headquartered in Bellevue, WA, we maintain full control over design and production, ensuring precision engineering and innovation. Our team combines decades of expertise in laser diffraction, holography, and acoustic methodologies to address complex particle measurement challenges.We serve oceanographers, environmental scientists, and industrial clients through cutting-edge instruments that deliver reliable, high-resolution data. Our commitment to advancing particle intelligence supports critical applications in environmental monitoring, hydropower optimization, and marine ecosystem research. With dedicated sales offices in Bellevue and Mobile, AL, we provide tailored solutions and technical support to meet diverse scientific and industrial needs.
Services
LISST Instruments
Hyperspectral Sensors
FlowControl Systems
Optical VSF Sensors
Particle Analysis Software
Technical Support Services
Instrument Calibration
Environmental Monitoring Solutions
Research Consulting
Custom Sensor Development
Details
- Year established: 1995
Highlights and features
- 30+ years pioneering laser-based particle measurement technologies
- Global deployment in critical environments from deep oceans to deserts
- Integrated hardware-software solutions with lifelong calibration stability
- Specialized support for academic, government, and industrial research needs
- Rapid technical assistance and repair services with minimal downtime
What people say
High-resolution measurements
User-friendly software
Exceptional technical support
Durable instruments
Accurate data collection
Services
LISST-200X
Measures particle size distribution and optical properties in marine environments. Uses laser diffraction for in-situ analysis of sediments, algae, and flocs. Provides high-resolution data for oceanographic research and environmental monitoring.
Hyper-a
Captures detailed absorption spectra for water quality analysis. Supports marine biogeochemistry studies through precise optical property measurements. Enables calibration of remote sensing data for phytoplankton monitoring.
FlowControl-Sub
Automates particle property measurements in dynamic environments. Enhances accuracy for differential analysis in hydropower and drilling applications. Integrates with LISST instruments for real-time data collection.
LISST-VSF
Measures volume scattering functions for ocean optics research. Quantifies beam attenuation and depolarization across angular ranges. Supports studies on particle interactions in marine ecosystems.
LISST-Horizon
Automated particle analysis for onboard research vessels. Provides continuous measurements during field campaigns. Combines LISST technology with flow-through systems for real-time data processing.
Questions
What industries use Sequoia's particle measurement instruments?
Our instruments serve marine science, freshwater research, hydropower, oil & gas, and environmental monitoring applications globally.
Do LISST instruments require frequent recalibration?
No - LISST systems maintain calibration for life through patented design principles, minimizing maintenance requirements in field environments.
Can your sensors operate in extreme environments?
Yes - instruments function from desert rivers to 4000m ocean depths, with models tested in Arctic conditions and tropical climates.
What support options exist for international customers?
We provide global technical support and coordinate repair services with clear documentation for international shipments.
How do LISST instruments compare to traditional sampling methods?
Our systems offer real-time, in-situ analysis with higher resolution and reduced sample disturbance compared to lab-based methods.
What training resources are available?
We offer comprehensive documentation, software tutorials, and direct technical assistance for all instrument deployments.
