Allen-Bradley 1762-IR4 is a MicroLogix RTD and resistance input module from Rockwell Automation, designed for precise temperature and resistance measurement in industrial automation systems. The module features four input channels compatible with a wide range of RTD types, including 100Ω, 200Ω, 500Ω, and 1000Ω Platinum 385 and 3916, 10Ω Copper 426, 120Ω Nickel 672 and 618, and 604Ω Nickel-Iron 518 sensors. It also supports resistance input ranges of 0–150Ω, 0–500Ω, 0–1000Ω, and 0–3000Ω, providing versatile measurement options. The 1762-IR4 serves as a suitable expansion module for MicroLogix 1100, 1200, and 1400 PLCs, ensuring accurate and reliable signal acquisition for temperature and resistance monitoring applications.