Description
The MAMAC Systems HU-226-2-MA-12 is a precision duct-mount humidity and temperature transducer engineered for demanding building automation and HVAC control applications. Combining dual-parameter sensing in a single device, this transducer delivers reliable, accurate readings of both relative humidity and temperature directly from the airstream — simplifying installation and reducing the need for separate sensing devices.
Humidity Sensing
The HU-226-2-MA-12 measures relative humidity with a ±2% accuracy rating, making it well suited for critical environmental monitoring in commercial and industrial duct systems. Its 4-20mA 2-wire output signal provides a robust, noise-immune transmission ideal for long cable runs common in large HVAC installations.
Temperature Sensing
Integrated temperature sensing is accomplished via a 10,000 Ohm NTC thermistor (Type II), a widely accepted sensor type compatible with a broad range of building automation controllers and DDC systems. This eliminates the need for additional temperature probes in the same duct section.
Key Specifications
- Measurement Parameters: Relative Humidity and Temperature
- Humidity Accuracy: ±2%
- Humidity Output: 4-20mA, 2-wire
- Temperature Sensor Type: 10,000 Ohm NTC Thermistor (Type II)
- Supply Voltage: 12–40Vdc
- Mounting: Duct (insertion-style)
Application Highlights
- Ideal for commercial HVAC duct humidity and temperature monitoring
- Compatible with BAS/DDC controllers accepting 4-20mA and NTC thermistor inputs
- Wide supply voltage range (12–40Vdc) supports diverse control panel configurations
- 2-wire 4-20mA output minimizes field wiring complexity
- Dual-parameter sensing reduces installation time and hardware costs
Why Choose the MAMAC HU-226-2-MA-12?
MAMAC Systems is a trusted name in HVAC sensing and transducer technology. The HU-226-2-MA-12 is built to deliver long-term stability and accuracy in duct environments, helping facility managers and controls technicians maintain precise environmental conditions. Its broad supply voltage range and industry-standard output signal make integration straightforward with virtually any modern building automation platform.
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