
MAC155 Moisture Analyzer
- Built-in 2-point calibration
- Up to 2400°F measurement range
- NEMA 4X waterproof design



NIST-Traceable Measurement
US EPA Compliant
NEMA 4X Rated
MAC Instruments manufactures industrial gas humidity analyzers for high-temperature moisture detection in demanding process environments. Our patented solid-state analyzers measure moisture content in exhaust gases, steam, and industrial processes up to 2400°F without chemicals, wet bulbs, or compressed air. Designed for continuous emission monitoring, process control, and EPA compliance across power generation, cement manufacturing, metal processing, and food production facilities worldwide.



While RGA (Residual Gas Analyzer) is different from humidity analyzers, MAC gas humidity analyzers measure water vapor content (moisture) in industrial process gases using solid-state sensors. Our analyzers provide accurate dewpoint and humidity measurements in gases from 40°F to 2400°F without wet bulbs, mirrors, or chemical consumables.
Talk to our experts for custom solutions and tailored guidance.

Continuous stack gas moisture monitoring for EPA compliance and combustion efficiency optimization in coal, natural gas, and biofuel power plants.

High-temperature moisture measurement in kilns and calciners to control product quality and optimize fuel consumption in cement production.

Steam quality monitoring and moisture control in ovens, dryers, and pasteurization systems to maintain product yield and cooking efficiency.

Humidity control in furnaces, annealing ovens, and heat treatment processes to ensure proper metal quality and prevent oxidation defects.
Talk to our experts for custom solutions and tailored guidance.
Our patented solid-state sensors measure moisture accurately in gases up to 2400°F without wet bulbs, mirrors, or compressed air, delivering reliable data in the harshest process conditions.
Daily 2-point in-situ calibration ensures measurement accuracy and regulatory compliance without production interruptions, reducing maintenance costs and maximizing uptime for continuous monitoring applications.
Since 1990, we've engineered NIST-traceable, EPA-compliant moisture analyzers with NEMA 4X weatherproof construction, backed by technical support and a global distributor network for reliable long-term performance.
Our technical team will help you select the right moisture analyzer for your process conditions. Expect a detailed 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