The National Instruments NI 9481 cDAQ 4-ch Electromechanical Relay Output Module is a versatile digital I/O module designed for data acquisition and control applications. With its reliable brand reputation and specific model number 9481, this module offers 4 channels of electromechanical relay output for precise control of various devices. Ideal for test, measurement, and inspection tasks in industrial and business settings, the NI 9481 cDAQ module provides a reliable and efficient solution for data acquisition and logging needs.