Products
Software
Data Acquisition Systems
StackVision Data Acquisition System (DAS)
Discover why more than 3,100 air emissions sources in a wide variety of industries rely on StackVision for monitoring and reporting to meet federal, state and local requirements.
Prism Data Acquisition System (DAS)
Looking for a flexible, reliable CEMS Data Acquisition System? Prism is built on decades of experience in air emissions compliance to meet federal, state and local requirements.
CEMDAS & COMDAS Evolution
CEMDAS & COMDAS are user-friendly systems that operate with a Programmable Logic Controller (PLC) and are ideal for Ethanol and Biomass facilities to monitor and report air emissions data.
Air Emissions Software
FleXReports
Export data from StackVision into Microsoft® Excel easily and securely for maximum flexibility with FleXReports air emissions compliance software.
QAInsight
Schedule, plan and track various activities related to performing Quality Assurance (QA) tests with QAInsight air emissions compliance software.
RataView
Designed by CEMS technicians for CEMS technicians, RataView software helps stack testers perform Relative Accuracy Test Audits (RATA) tests accurately and efficiently to meet air emissions compliance regulations.
Hardware
Data Controllers
8864 Data Controller
The 8864 provides reliable, robust data collection, computation, and storage. It is the most widely used device for air emissions data from CEMS in the U.S.
8864 Compact Data Controller
Ideal for tight spaces and hazardous environments, this device provides the firmware functionality of the 8864 Data Controller in a compact design.
8864 Ambient Data Controller
This data controller is ideal for ambient applications. With a Mean-Time-Between-Failure of over 20 years, ESC Spectrum's devices are known as “workhorses.”
Analyzers & Sampling Components
CEMS & Ambient Air Analyzers and Sampling Components
Analyzers and sampling components for CEMS, stack testing & ambient air applications.
Combustion Control Analyzers and Sampling Components
Analyzers and sampling components for combustion control applications, which are vital for operating boilers, process heaters, reciprocating engines, turbines, and other devices efficiently and safely.
Gas Detection & Safety Analyzers and Sampling Components
Analyzers and sampling components for gas detection, industrial hygiene, and safety.
Process, Flare & Natural Gas Analyzer and Sampling Components
Analyzers and sampling components for monitoring process stoichiometry and compositions for control, efficiency, safety, product quality, custody transfer and reliability.
CEMS Parts
Continuous Emissions Monitoring Systems (CEMS) Parts
ESC Spectrum has a wide variety of CEMS parts to keep your facility running smoothly, ranging from the most common to the hardest to find. We have analyzers from major manufacturers including Thermo-Fisher, Teledyne and M&C, as well as umbilicals, probes and more.
Integrated Systems
Continuous Emission Monitoring
ESC Spectrum designs and tailor CEM systems to meet the toughest monitoring challenges. We construct CEMS in compliance with federal, state, and local regulations based on an in-depth knowledge of the process, monitoring and ancillary hardware, control system, and reporting software requirements involved.
Natural Gas and Midstream
We provide design-build gas measurement systems for the Natural Gas, Liquid Natural Gas and Liquid Hydrocarbon sectors. They are strictly compliant with all Hazardous Area Classifications, including Class I and II, Division I and II and Groups ABCD. They meet all relevant standards: API, ISA, UL, FM, UBC, NELC, CSA and ATEX.
Process Monitoring
Our systems for process control, product quality and process safety applications are deisgned to meet any measurement requirements, from standard to challenging. Our systems can monitor analytes from percent ranges to trace level concentrations. We can couple chemical composition analysis with physical process parameters including flow, pressure, temperature, color, turbidity, viscosity, pH and more.
Flare Gas Monitoring
ESC Spectrum's Flare Gas monitoring systems are designed to operate in the harshest refinery and petrochemical flare applications, including samples with routine water, hydrocarbon liquids, steam injection and high velocity flows. Our systems offer comprehensive, real-time Flare Gas monitoring to The EPA's NSPS Subpart Ja and Refinery Sector Rules,and future Petrochemical industry requirements.
Fenceline and Ambient Air
Many industries are required by regulations, consent decrees and permits to monitor pollutants and toxic gases that cross their fenceline. These include Benzene monitoring requirements for refineries as per the Refinery Sector Rule. Our analyzer and integrated systems are idea for ambient air or industrial hygiene, safety and air quality applications.
Shelters, Racks & Enclosures
ESC Spectrum offers a variety of shelter, racks and enclosures custom-built to fit any application in a variety of industries, including power generation, refinery, petrochemical, pulp and paper, glass manufacturing, metal production, chemical processing, universities, medical centers and more.
We create innovative air emissions compliance software for facilities in a variety of industries. Our solutions help customers comply with regulatory requirements and avoid audits, inquiries, and fines, as well as increase efficiency. ESC Spectrum software is supported by an in-house staff of developers, engineers, reporting professionals, and customer service experts.
We create hardware products, integrated systems and shelters, enclosures & racks thoughtfully and with high-quality components.
- Our industry-leading 8864 Data Controller provides reliable, robust data collection, computation, and storage.
- We have decades of experience and custom-built integrated systems unique to each customer’s specifications
- Our wide variety of CEMS parts range from the most common to the hardest to find.
From The Source Blog
Air Emissions Calibration Testing: Staying Compliant With Daily and Quarterly Requirements
Accurate air emissions calibration testing is essential for maintaining compliance and ensuring reliable CEMS performance. This blog breaks down daily and quarterly calibration test requirements, explains how offline calibrations are used, and clarifies what causes out-of-control data.
Alliance Technical Group Acquires ESC Spectrum, Cementing Global Leadership in Continuous Emissions Monitoring (CEMS) and Data Acquisition Systems (DAS)
ESC Spectrum is now part of Alliance Technical Group, combining forces to deliver the most comprehensive CEMS and DAS compliance platform in the industry. This strategic acquisition strengthens our ability to serve customers with expanded resources, nationwide support, and end-to-end environmental solutions.
CEMS Probe Maintenance: Extractive vs. Dilution Systems
CEMS probes are the first point of contact with the gas sample line in your emissions monitoring system. Discover why routine maintenance is critical—and how to do it right.