
MAC155 Moisture Analyzer
- Built-in 2-point calibration system
- Measures up to 1200°F (2400°F opt.)
- NEMA 4X outdoor-rated housing


US EPA Compliant
NEMA 4X Rated
NIST Traceable
MAC Instruments flue gas analyzers provide precise combustion testing and continuous emission monitoring for industrial applications. Our patented solid-state moisture analyzers measure humidity in high-temperature exhaust gases up to 1200°F (optional 2400°F) without chemicals, wet bulbs, or compressed air. NEMA 4X weatherproof design ensures reliable performance in stack gas monitoring, EPA compliance, and process control applications across power generation, cement manufacturing, and metal processing industries.


Our analyzers measure stack gas moisture at temperatures up to 1200°F standard, with optional capability to 2400°F for extreme applications.
Talk to our experts for custom solutions and tailored guidance.

Continuous emission monitoring for coal, biofuel, and natural gas combustion with EPA-compliant moisture measurement.

High-temperature moisture monitoring in kilns, calciners, and exhaust stacks to optimize production efficiency.

Stack gas analysis for furnaces and heat treatment processes requiring precise humidity control and emission compliance.

Moisture measurement in recovery boilers, dryers, and process exhaust systems for quality and regulatory compliance.
Talk to our experts for custom solutions and tailored guidance.
Our proprietary solid-state sensors measure moisture up to 1200°F (optional 2400°F) without chemicals, wet bulbs, optics, or compressed air—ensuring consistent accuracy in extreme conditions.
Meet regulatory requirements with confidence. Our analyzers comply with US EPA standards for emission monitoring and provide NIST-traceable measurements for audit-ready documentation.
Since 1990, we've been the world leader in high-temperature moisture measurement. NEMA 4X weatherproof construction and global distributor support ensure long-term performance and minimal downtime.
Submit your requirements and our technical team will respond within 24 hours with product recommendations, pricing, and EPA compliance guidance tailored to your application.
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