The Emerson Automation IC200ALG620 is a 4-channel Resistance Temperature Detector (RTD) input module from the VersaMax I/O series, originally developed by GE Intelligent Platforms. It features four (4) RTD input channels compatible with both 3-wire and 4-wire RTD configurations, providing flexibility for various temperature sensing applications. The module supports multiple RTD sensor types, including Platinum 25, 100, and 1000 ohm; Copper 10, 50, and 100 ohm; Nickel 100 and 120 ohm; and Nickel/Iron 604 ohm elements. In addition to RTD sensors, it can directly measure resistance ranges of 0–500 ohms and 0–3000 ohms, making it suitable for precision resistance-based temperature measurement. With a 16-bit conversion resolution, the IC200ALG620 ensures high accuracy and stability in analog signal processing. This module may possibly be applied across North America, Europe, Asia, and other regions where Emerson VersaMax systems are utilized for high-precision temperature monitoring and industrial process control.