Crestron CEN-IO-RY-104 - control module - black, blue

The Crestron CEN-IO-RY-104 is a compact and cost-effective wired I/O module designed to easily expand the available relay ports within a commercial or residential system. A small form factor allows the CEN-IO-RY-104 to be placed just about anywhere, with the option to attach it to a flat surface or DIN rail using the included mounting bracket.