The OPTO-22 SNAP-IAC5 is a versatile Snap Digital Input Module with 4 channels and 90-140 VAC input capability. This module features 5 VDC logic, making it ideal for industrial automation and control applications where accurate and reliable digital signal inputs are required. With its compact design and easy integration with other Snap PAC System components, the SNAP-IAC5 is a reliable solution for monitoring and controlling various processes in industrial settings.