The OPTO-22 AD3 is a versatile plug-in I/O module that provides reliable relay control for various industrial applications. With its 20mA input capability and superior isolation rating of 4000Vrms, this module ensures safe and efficient performance in even the most demanding environments. Whether used for process control, automation, or monitoring systems, the AD3 offers seamless integration and easy installation with its convenient plug-in design. Expand the capabilities of your system with the OPTO-22 AD3 and experience high-quality relay control at your fingertips.