This is a Remote Input Output Modue and provides Ion Gauge (IG) status outputs, remote filament on/off, degas on/off, front panel lockout capability, and fault or degas status indication relay. For installation of this user installed module see page 19 and for user instructions see page 27-29 of the 307 Vacuum Controller Instruction Manual.pdf below. This is the Remote Input Output Module ONLY, MKS Granville Phillips 307 Controller, Cables and Accessories sold separately on this website. The MKS Granville Phillips 307 Vacuum Gauge Controller Instruction Manual.pdf can be downloaded below at DOWNLOADS: