
Mac 125 Moisture Analyzer
- Measures up to 1200°F
- NEMA 4X weatherproof design
- No chemicals or air required


NIST Traceable
NEMA 4X Rated
MAC Instruments manufactures high-precision rotary dryer moisture analyzers for aggregates and minerals processing. Our patented solid-state humidity sensors measure moisture levels up to 1200°F (650°C) with ±1% accuracy, enabling real-time process control in kilns, dryers, and high-temperature applications. Designed for 24/7 operation with NEMA 4X weatherproof construction and no chemicals or compressed air required.


What is the maximum operating temperature for rotary dryer moisture analyzers?
MAC moisture analyzers measure up to 1200°F (650°C) standard, with optional capability to 2400°F (1300°C) for ultra-high temperature applications in minerals processing.
How accurate are these moisture analyzers for aggregates drying?
Do these moisture analyzers require compressed air or chemicals?
Can these analyzers be installed outdoors on rotary dryers?
How often do MAC moisture analyzers need calibration?
What analog outputs are available for process control integration?
Are these analyzers suitable for EPA emissions compliance monitoring?
Talk to our experts for custom solutions and tailored guidance.

Real-time moisture control in rotary dryers and kilns ensures optimal product quality and energy efficiency in sand, gravel, and crushed stone processing.

Continuous moisture monitoring in high-temperature mineral dryers and calciners optimizes throughput and product consistency for industrial minerals.

Precise humidity measurement in cement kilns, clinker coolers, and raw mill operations improves thermal efficiency and product quality control.

Accurate moisture measurement in annealing furnaces and heat treatment ovens ensures proper atmospheric control for superior metal finishing quality.
Talk to our experts for custom solutions and tailored guidance.



Patented solid-state sensors deliver ±1% accuracy up to 1200°F without chemicals, wet bulbs, or compressed air. Optional capability to 2400°F for the most demanding applications.
NEMA 4X weatherproof construction withstands harsh industrial environments. Designed for 24/7 monitoring with minimal maintenance and no consumables required.
World leader in high-temperature moisture measurement since 1990. NIST-traceable instruments trusted by processors worldwide for process optimization and quality control.
Submit your requirements and our applications engineers will respond within 24 hours with technical recommendations and pricing for your specific process conditions.
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