
MAC155 Moisture Analyzer
- Built-in 2-point calibration
- Up to 2400°F temperature capability
- NEMA 4X waterproof outdoor-ready


NIST-Traceable Certified
US EPA Compliant
NEMA 4X Rated
MAC Instruments offers advanced continuous emission monitoring systems for industrial chimneys, featuring patented solid-state moisture analyzers designed for extreme temperatures up to 1200°F (optional to 2400°F). Our EPA-compliant CEMS solutions provide real-time humidity measurement in stack gases for power generation, cement manufacturing, metal processing, and other heavy industries. With NEMA 4X weatherproof construction and built-in calibration systems, our analyzers ensure accurate regulatory compliance and process control.


Standard models measure stack gases up to 1200°F, with optional configurations available for extreme conditions up to 2400°F for specialized industrial applications.
Talk to our experts for custom solutions and tailored guidance.

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

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

Stack gas humidity monitoring in furnaces and metal processing operations with extreme temperature capability.

24/7 emission monitoring in paper processing dryers, ovens, and industrial exhaust systems for quality control.
Talk to our experts for custom solutions and tailored guidance.
Patented solid-state sensors measure moisture accurately in stack gases up to 1200°F standard, with optional capability to 2400°F—no competitor comes close to this temperature range.
Built-in calibration systems and NIST-traceable accuracy ensure your continuous emission monitoring meets all US EPA stack gas moisture measurement requirements without fail.
No wet bulbs, mirrors, optics, or compressed air required. NEMA 4X weatherproof construction delivers uninterrupted 24/7 monitoring in the harshest industrial environments for over 30 years.
Submit your specifications and our technical team will respond within 24 hours with product recommendations and pricing tailored to your stack monitoring needs.
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
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