MAC155 Moisture Analyzer
Mac 125 Moisture Analyzer
NIST-traceable measurement capabilities certified

NIST-Traceable

US EPA Compliant certified

US EPA Compliant

NEMA 4X Rated certified

NEMA 4X Rated

Stack Emission Monitoring for Industrial Compliance

MAC Instruments' stack emission monitoring systems provide continuous, accurate moisture measurement for industrial compliance and process control. Our patented solid-state analyzers operate in extreme temperatures up to 2400°F without chemicals, wet bulbs, or compressed air. Designed for EPA regulatory compliance, these NEMA 4X weatherproof instruments deliver instant readings for power generation, cement manufacturing, metal processing, and other demanding industrial applications requiring 24/7 emission monitoring.

Our Range of Products

MAC155 Moisture Analyzer

MAC155 Moisture Analyzer

  • Built-in 2-point calibration
  • Up to 2400°F temperature capability
  • NEMA 4X waterproof outdoor design
Mac 125 Moisture Analyzer

Mac 125 Moisture Analyzer

  • Solid-state humidity measurement
  • In-flame measurement capability
  • Automatic altitude compensation

Frequently Asked Questions

What is the maximum temperature these stack emission monitors can handle?

The MAC155 handles up to 1200°F standard (2400°F optional), while the MAC125 measures up to 1200°F/650°C, including in-flame conditions for extreme industrial environments.

Are these systems compliant with EPA emission monitoring regulations?

How quickly do these analyzers provide moisture readings?

Can these monitors be installed outdoors in harsh weather conditions?

What maintenance is required for these stack emission monitoring systems?

Do these analyzers require compressed air or chemical consumables?

What industries commonly use these stack emission monitoring systems?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Power Generation

Power Generation

Continuous emission monitoring for coal, biofuel, and natural gas power plants ensuring EPA compliance and optimal combustion efficiency.

Cement Manufacturing

Cement Manufacturing

High-temperature moisture measurement in kilns and calciners for process control and regulatory compliance during cement production.

Metal Processing

Metal Processing

Stack gas monitoring in furnaces and high-temperature metal processing operations for quality control and emission compliance.

Paper Processing

Paper Processing

Humidity measurement in dryers and exhaust systems for paper manufacturing process optimization and environmental compliance.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Industrial Manufacturers Choose MAC Instruments

Extreme Temperature Capability

Patented solid-state technology measures moisture accurately up to 2400°F without wet bulbs, optics, mirrors, or compressed air—ideal for the harshest industrial environments.

EPA Regulatory Compliance

NIST-traceable accuracy meets US EPA requirements for continuous emission monitoring, helping you maintain compliance with confidence and avoid costly regulatory penalties.

Proven Manufacturing Excellence

Over 30 years of precision instrument manufacturing in Sandusky, Ohio. World-leading expertise in high-temperature moisture measurement with installations at hundreds of global locations.

Get Expert Guidance on Stack Emission Monitoring Solutions

Connect with our technical specialists to discuss your compliance requirements. Expect a detailed consultation on system configuration, installation, and regulatory support.

Contact Us Today

For immediate assistance, feel free to give us a direct call at 419.621.2322 You can also send us a quick email at info@macinstruments.com