The Schneider Electric TMC4TI2 is a 4-channel thermocouple and millivolt input module from the Modicon TM4 expansion I/O system. It is designed to directly connect temperature sensors, specifically various types of thermocouples (T/C), as well as sensors that output low-level millivolt (mV) signals, to a Modicon TM4 controller (such as the TM241 series).