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The Allen-Bradley 1771-IXHR is a high-performance PLC 5 Analog Input Module designed for precise thermocouple and millivolt inputs, featuring eight floating differential inputs for various thermocouple types including B, E, J, K, T, R, and S, as well as ±100 millivolt inputs. This module fits seamlessly into a single-slot of a 1771 I/O chassis without requiring an external power supply and offers cold junction compensation and selectable temperature scales with high accuracy. Key features include user-selectable high and low-temperature alarms, automatic offset and gain calibration, status indicators for operation and faults, and a robust design that ensures seamless module replacement without disconnecting wiring, making it an ideal choice for high-resolution thermal measurement applications.