
Mac 125 Moisture Analyzer
- NEMA 4X waterproof outdoor design
- Measures humidity up to 1200°F
- No chemicals or compressed air



NIST Traceable Certified
MAC Instruments manufactures water-resistant humidity sensors engineered for extreme industrial environments. Our NEMA 4X/IP66-rated moisture analyzers measure humidity in temperatures up to 1200°F using patented solid-state technology—no wet bulbs, mirrors, or compressed air required. Designed for stacks, ducts, furnaces, kilns, and food processing lines, these instruments deliver accurate, instantaneous readings in the harshest conditions where standard sensors fail.



Standard models measure accurately up to 1200°F (650°C), with optional configurations available for extreme applications up to 2400°F (1300°C) in industrial process environments.
Talk to our experts for custom solutions and tailored guidance.

Monitor stack emissions and combustion efficiency in coal, biofuel, and natural gas plants with EPA-compliant moisture measurement.

Control moisture in kilns, calciners, and rotary dryers to optimize energy efficiency and product quality in cement production.

Maintain precise steam quality in continuous ovens and pasteurization equipment with sanitary IP66-rated sensors for CIP operations.

Measure humidity in furnaces, annealing ovens, and heat treatment processes where extreme temperatures demand specialized sensors.
Talk to our experts for custom solutions and tailored guidance.
Our patented solid-state sensors measure humidity accurately in temperatures up to 1200°F (optional 2400°F)—environments where conventional sensors simply fail. No wet bulbs, mirrors, or compressed air required for reliable operation.
NEMA 4X/IP66 waterproof construction withstands outdoor installation, chemical washdowns, and corrosive atmospheres. Stainless steel barrels and cast aluminum enclosures ensure decades of reliable service in the toughest conditions.
Since 1990, we've been the world leader in high-temperature moisture measurement. Our NIST-traceable instruments serve hundreds of installations globally across power generation, cement, food processing, and metal processing industries.
Our applications engineers will help you specify the optimal sensor configuration for your process conditions. Expect a detailed technical consultation within 24 hours.
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