This is the PI7-3 interface #A-5726-0100. It is a dual purpose interface designed to process signals from the TP7M strain gauge probe and standard touch trigger probes. Special auto-selecting electronics within the interface allow exchange of these probes without any changes to the interface. The PI7-3 performs all functions of the PI4 and PI9 interfaces, but has additional features such as probe damping, probe inhibit, and emergency stop. can be either free standing or rack mounted.
It supports TP7M and TP2, TP6, TP6A and TP20 probes.