
MAC155 Moisture Analyzer
- 60-second fast response time
- Built-in 2-point calibration
- NEMA 4X waterproof design


NIST-Traceable Measurement
EPA Compliant
NEMA 4X Rated
Precision exhaust moisture monitoring solutions for gypsum board manufacturing facilities. MAC Instruments' moisture analyzers deliver real-time humidity measurement in dryer exhaust systems up to 1200°F, ensuring optimal drying efficiency and product quality. Our patented solid-state sensors provide accurate, instantaneous readings without compressed air or wet bulbs, ideal for continuous process control and regulatory compliance.


What is the most accurate moisture meter for plants?
MAC Instruments' moisture analyzers provide ±1% full-scale accuracy with NIST-traceable calibration, making them ideal for precise plant process control and regulatory compliance.
How much moisture should be in gypsum board?
Can these analyzers withstand the high temperatures in gypsum board dryer exhaust?
How quickly do these analyzers respond to moisture changes?
Do these systems require regular wet bulb maintenance or compressed air?
Are these moisture analyzers EPA compliant for emissions monitoring?
Can these analyzers be installed outdoors in harsh environments?
Talk to our experts for custom solutions and tailored guidance.

Dryer exhaust moisture monitoring ensures optimal board drying efficiency and product quality compliance.

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Dryer section and exhaust duct humidity control for optimal paper quality and energy efficiency.
Talk to our experts for custom solutions and tailored guidance.



Patented solid-state sensors measure moisture accurately up to 1200°F in dryer exhaust systems without compressed air, wet bulbs, or optics—delivering consistent reliability.
Built-in calibration systems and NIST-traceable measurement capabilities ensure regulatory compliance and precise process control for optimal gypsum board quality.
Since 1990, MAC Instruments has led the industry in high-temperature moisture measurement, serving hundreds of manufacturing facilities worldwide with field-proven solutions.
Connect with our moisture measurement specialists to discuss your exhaust monitoring requirements. Receive a tailored solution recommendation and competitive quote 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