
Mac 125 Moisture Analyzer
- Measures to 1200°F (650°C)
- NEMA 4X waterproof design
- No chemicals or compressed air



NIST-Traceable Measurement
NEMA 4X Rated
Industrial-grade humidity sensors with 4-20mA output designed for HVAC systems and high-temperature process monitoring. MAC Instruments' moisture analyzers deliver precise humidity measurement from 40°F to 1200°F using patented solid-state technology. NEMA 4X/IP66 rated enclosures withstand harsh environments while providing continuous, accurate readings for process control and regulatory compliance across power generation, manufacturing, and food processing applications.



Measurement ranges vary by model: MAC155 offers 3-15%, 6-30%, 9-45%, or 12-60% water vapor by volume. MAC125 measures absolute humidity to virtually any temperature.
Talk to our experts for custom solutions and tailored guidance.

Continuous stack gas monitoring for coal, biofuel, and natural gas operations with EPA-compliant humidity measurement.

High-temperature moisture control in kilns, calciners, and dryers for optimal production efficiency and product quality.

Sanitary steam quality monitoring for cooking, drying, and pasteurizing with IP66-rated sensors and CIP compatibility.

Process humidity control for furnaces and heat treatment operations requiring extreme temperature measurement capability.
Talk to our experts for custom solutions and tailored guidance.
Our proprietary solid-state sensors measure humidity up to 1200°F without chemicals, wet bulbs, or compressed air—delivering unmatched accuracy in extreme industrial environments.
Daily 2-point in-situ calibration ensures measurement integrity without process interruption. Field-proven technology maintains ±1% accuracy throughout harsh operating conditions.
NEMA 4X/IP66 rated stainless steel and cast aluminum enclosures withstand outdoor installation, chemical exposure, and continuous operation in the world's toughest industrial processes.
Our application engineers will help you select the right humidity sensor configuration for your HVAC or industrial process requirements. Expect a response within one business day.
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