Description
The MAMAC Systems HU-224-2-MA is a precision duct-mount relative humidity transducer engineered for demanding commercial and industrial HVAC applications. Delivering a ±2% accuracy rating, this transducer provides dependable, repeatable humidity measurement directly within ductwork — giving building automation systems and air-handling units the reliable data they need for optimal environmental control.
Signal Output & Power Supply
- 4-20mA, 2-wire current loop output for noise-immune signal transmission over long cable runs
- 12–40Vdc supply voltage range for broad compatibility with a wide variety of BAS and DDC controllers
- 2-wire loop-powered design simplifies wiring and reduces installation costs
Measurement Performance
- ±2% relative humidity accuracy for precise environmental monitoring
- Measures relative humidity (RH) across the full 0–100% RH range
- Fast-response capacitive sensing element for accurate real-time readings
Duct Mounting & Construction
- Designed for direct duct insertion — ideal for air handling units, rooftop units, and VAV systems
- Durable housing suitable for commercial HVAC environments
- Compact form factor for easy installation in standard ductwork
Applications
- Commercial building automation and DDC systems
- Air handling unit (AHU) humidity monitoring and control
- Demand-controlled ventilation (DCV) systems
- Rooftop unit (RTU) and VAV box humidity sensing
- Industrial process humidity monitoring in ducted environments
Why Choose the MAMAC HU-224-2-MA?
MAMAC Systems is a trusted name in HVAC sensing and transducer technology. The HU-224-2-MA combines a wide supply voltage range (12–40Vdc), industry-standard 4-20mA 2-wire output, and ±2% RH accuracy into a rugged duct-mount package — making it an ideal drop-in solution for new construction and retrofit BAS projects alike. Its loop-powered architecture eliminates the need for a separate power supply wire, streamlining installation and reducing overall system cost.
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