[INQ. NO. 2509M01] DUON System Co., Ltd. successfully developed Korea’s first intelligent smart transmitter using its own technology and launched it in 1998, acquiring the AUTROL trademark.
The AUTROL product line, which measures pressure, temperature, and level, was developed by using 100% domestic technology featuring high-precision, and high-performance. Based on its high accuracy and reliability, the AUTROL product line has been recognized for its technological proficiency through acquiring domestic and international patents.
Furthermore, the AUTROL product line has received quality certifications such as ISO9001, 14001, and OHSAS18001, as well as domestic explosion-proof and intrinsically safe certifications, and KEPIC for nuclear power.

Smart Pressure Transmitter (APT3200) for High-Precision Gauge & Absolute Pressure Measurement
The APT3200 is a smart pressure transmitter for measuring of high-precision gauge, absolute pressure. Based on a high-sensitivity piezoelectric sensor and temperature compensation algorithm, it delivers outstanding accuracy (±0.04% when ±0.075% selected) and long-term stability.
This model features HART-based communication, loop power, LCD display, self-diagnostics, and various certifications (IP66/67, SIL2, etc.).

Smart Pressure Transmitter (APT3500)
The APT3500 is a smart pressure transmitter that supports various measurement modes, including differential pressure, gauge, absolute pressure, level, static pressure, and flow.
This model features a high accuracy of ±0.04%, and supports ambient temperature and process-variable compensation, HART-based communication, configuration storage via EEPROM, self-diagnostics, and various certifications including SIL2 and IP66/67.

Microprocessor-Based Smart Transmitter (ATT2100)for Temperature Measurement
The ATT2100 is a microprocessor-based smart transmitter for temperature measurement that supports RTD and thermocouple inputs.
This product features automatic compensation for ambient temperature and process parameters, HART-based communication, loop power, high accuracy (RTD ±0.17°C, T/C ±0.77°C), self-diagnosis, LCD display, and button configuration.

Intelligent-Level Transmitter (ALT6100) for Measuring Water Level
The ALT6100 is a high-precision Time-Domain Reflectometry (TDR)-based intelligent-level transmitter for measuring water level. It is applicable to a wide range of applications, including HVAC systems, chiller systems, and water electrolysis facilities.
In particular, this product is effectively used for water-level measurement in eco-friendly facilities that minimize or recycle greenhouse gases generated during data center operation.
DUON Systems has obtained international certifications such as SIL2, ATEX, and IEC, as well as by classification societies such as ABS, BV, and DNV ― meeting the quality and environmental standards of various countries ― and is currently supplying its products to Korea’s top three shipbuilders. DUON System is also actively involved in technology development in such areas as various environmental equipment and renewable energy facilities ― in collaboration with related companies.
“With more active R&D investment and a high-quality system, we will grow into a stable, world-class company,” the company’s CEO emphasized.

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