The Allen-Bradley 931N-T221 is a thermocouple signal converter designed as a cost-effective solution for temperature signal conditioning, particularly for applications using J or K type thermocouples. Its primary function is to isolate signals and retransmit the temperature readings from these thermocouples to data acquisition hardware, ensuring accurate and reliable measurements. In North America, Europe, and Asia, the 931N-T221 may possibly enhance temperature signal integrity and could potentially be deployed across the globe, making it an essential component for professional industrial process monitoring and automation.