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SEAL Analyzers are trusted worldwide for monitoring environmental samples, with manufacturing facilities in the USA, Germany, and the Netherlands. Supported by engineering and chemistry teams in Europe, the USA, and China, SEAL ensures top-tier instruments, methods, and compliance with regulatory standards. A global network of specialist distributors and service centers provides local expertise, stocked parts, and factory-trained service staff for unmatched support.

Products

Explore our 2025 Product Catalog

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Designed by chemists, for chemists

SEAL prides itself on designing, manufacturing and supporting the best analyzers, sample preparation and robotic equipment. For many of our thousands of customers around the globe this is no secret. But there are many other differences that make SEAL what it is, some of these well-known and others less so. We have identified what sets SEAL apart and what drives our business to deliver you safer, smarter and more dependable solutions.

Focused on Integrity and Trust
We operate with the highest integrity and focus on building strong customer relationships; in many cases we have spent decades as a trusted supplier. This trust is built on listening, understanding and delivering the highest quality products and solutions.

Experience
SEAL has over 60 years of experience in designing and manufacturing environmental and industrial automated analyzers and systems.

Strong Engineering Capabilities
An ongoing commitment to building and maintaining strong internal engineering capabilities either through the acquisition of key technologies or R&D internally.

Inhouse Expertise
The depth of knowledge and end-to-end quality control achieved with our in-house technical team of chemists, engineers and software programmers sets us apart from all others in the industry.

Environmental, Agricultural, and Industrial Samples
SEAL Analyzers are widely acknowledge as the best-in-class and instrument of choice for monitoring nutrients in water and wastewater, seawater, soils and plant materials, as well as the quality control of industrial products, fertilizers and tobacco.

Products that solve your problems
Our product development always starts with you, our customer. Understanding and addressing the pain points in a modern laboratory not only drives our product development it also drives our business acquisition of industry leading, proven technologies. Understanding your needs means we’re developing products that are smaller, more automated, more reliable and better for the environment.

Quality Emphasis
We have invested heavily in ensuring our business and manufacturing processes meet or exceed quality standards. We are proud to have received external acknowledgment of our quality emphasis with ISO 14001 and ISO 9001 accreditation.

Discrete Analyzers

SEAL discrete nutrient analyzers completely automate your manual wet chemistry methods, replicating the operation of a laboratory chemist and adding the ability to measure multiple analytes simultaneously. With true walk away operation including automatic standard preparation, automatic pre- and post-dilution, and automatic spiking capabilities, a SEAL discrete analyzer is ideal for laboratories requiring high levels of automation and a wide range of chemistries.

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Continuous Flow Analyzers

Ideal for laboratories requiring high throughput, high reproducibility and low detection limits, SEAL’s continuous flow analyzers, utilizing segmented flow analysis (SFA) technology, are state of the art nutrient analyzers. Systems are customizable to fit all workloads and method needs. Perfectly suited for standard chemistries as well as inline sample preparation including dialysis and UV digestion.

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Robotic Systems

SEAL Robotic MiniLab systems for automating sample pretreatment and analysis in the laboratory — improving your sample handling efficiency. Typical applications include BOD, pH, COD, Alkalinity, and conductivity measurements with options such as decapping/capping, sample splitting, and filtration.

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Digestion Systems

SEAL has many different ways to simplify the sample digestion process depending on the level of automation required and the digest temperature. From programmable high temperature digestion systems to automated metals digestion and sample preparation, we have your automated digestion needs covered.

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Compare our products

Common tests
AmmoniaNitrateNitritePhosphateTotal Kjeldahl Nitrogen (TKN)
Total Kjeldahl Phosphorus (TKP)
Total Nitrogen (TN)
Total Phosphorus (TP)Biological Oxygen Demand (BOD)
cBOD
Chloride
Chromium (VI)
Color
Cyanide
Fluoride
Hardness, Total
Iron, Free
Iron, Total
Phenol
Silicate
Sulfate
Sulfide
Alkalinity
Chlorine
Alkaloids, total (Nicotine)
Physical tests
Color
Alkalinity
pHConductivity (EC)
Turbidity
Soil Particle Distribution
Common processes
Auto-Calibration
Auto QC Insertion
Auto-Spiking
Dilution
Distillation
Gas Diffusion
Dialysis
Filtration
Persulfate Digestion
Persulfate (UV) Digestion
Kjeldahl Digestion
Trace Metals Digestion
Barcode Scanning
pH Adjustment
Sample Splitting
Capping and Decapping
Continuous Flow Analyzers
Continuous Flow Analyzers
Ammonia
Nitrate
Nitrite
Phosphate
Total Kjeldahl Nitrogen (TKN)
Total Kjeldahl Phosphorus (TKP)
Total Nitrogen (TN)
Total Phosphorus (TP)
Biological Oxygen Demand (BOD)
cBOD
Chloride
Chromium (VI)
Color
Cyanide
Fluoride
Hardness, Total
Iron, Free
Iron, Total
Phenol
Silicate
Sulfate
Sulfide
Alkalinity
Chlorine
Alkaloids, total (Nicotine)
Color
Alkalinity
pH
Conductivity (EC)
Turbidity
Soil Particle Distribution
Auto-Calibration
Auto QC Insertion
Auto-Spiking
Dilution
Distillation
Gas Diffusion
Dialysis
Filtration
Persulfate Digestion
Persulfate (UV) Digestion
Kjeldahl Digestion
Trace Metals Digestion
Barcode Scanning
pH Adjustment
Sample Splitting
Capping and Decapping
Discrete Analyzers
Discrete Analyzers
Ammonia
Nitrate
Nitrite
Phosphate
Total Kjeldahl Nitrogen (TKN)
Total Kjeldahl Phosphorus (TKP)
Total Nitrogen (TN)
Total Phosphorus (TP)
Biological Oxygen Demand (BOD)
cBOD
Chloride
Chromium (VI)
Color
Cyanide
Fluoride
Hardness, Total
Iron, Free
Iron, Total
Phenol
Silicate
Sulfate
Sulfide
Alkalinity
Chlorine
Alkaloids, total (Nicotine)
Color
Alkalinity
pH
Conductivity (EC)
Turbidity
Soil Particle Distribution
Auto-Calibration
Auto QC Insertion
Auto-Spiking
Dilution
Distillation
Gas Diffusion
Dialysis
Filtration
Persulfate Digestion
Persulfate (UV) Digestion
Kjeldahl Digestion
Trace Metals Digestion
Barcode Scanning
pH Adjustment
Sample Splitting
Capping and Decapping
Robotic Systems
Robotic Systems
Ammonia
Nitrate
Nitrite
Phosphate
Total Kjeldahl Nitrogen (TKN)
Total Kjeldahl Phosphorus (TKP)
Total Nitrogen (TN)
Total Phosphorus (TP)
Biological Oxygen Demand (BOD)
cBOD
Chloride
Chromium (VI)
Color
Cyanide
Fluoride
Hardness, Total
Iron, Free
Iron, Total
Phenol
Silicate
Sulfate
Sulfide
Alkalinity
Chlorine
Alkaloids, total (Nicotine)
Color
Alkalinity
pH
Conductivity (EC)
Turbidity
Soil Particle Distribution
Auto-Calibration
Auto QC Insertion
Auto-Spiking
Dilution
Distillation
Gas Diffusion
Dialysis
Filtration
Persulfate Digestion
Persulfate (UV) Digestion
Kjeldahl Digestion
Trace Metals Digestion
Barcode Scanning
pH Adjustment
Sample Splitting
Capping and Decapping
Digestion Systems
Digestion Systems
Ammonia
Nitrate
Nitrite
Phosphate
Total Kjeldahl Nitrogen (TKN)
Total Kjeldahl Phosphorus (TKP)
Total Nitrogen (TN)
Total Phosphorus (TP)
Biological Oxygen Demand (BOD)
cBOD
Chloride
Chromium (VI)
Color
Cyanide
Fluoride
Hardness, Total
Iron, Free
Iron, Total
Phenol
Silicate
Sulfate
Sulfide
Alkalinity
Chlorine
Alkaloids, total (Nicotine)
Color
Alkalinity
pH
Conductivity (EC)
Turbidity
Soil Particle Distribution
Auto-Calibration
Auto QC Insertion
Auto-Spiking
Dilution
Distillation
Gas Diffusion
Dialysis
Filtration
Persulfate Digestion
Persulfate (UV) Digestion
Kjeldahl Digestion
Trace Metals Digestion
Barcode Scanning
pH Adjustment
Sample Splitting
Capping and Decapping
Discrete Analyzer Software

Software designed for chemists

Experience an intuitive software design for analyzer operation and streamlined data-handling. From import/export features for any LIMS, to a tab-based, familiar user-interface; our software is designed in-house for short learning curves, high functionality, and data integrity for regulated laboratories.