Researching this Datascope Accutorr 4, trying to keep it in subassemblies for now. One of the sections is the pneumatic section, basically a pump, tubing, control circuit and four solenoid/pneumatic valves. Doing some "home work" and seems theres a market for these miniature pneumatic type devices. For hobby robotics, anyone familiar with robotics, this stuff is made by Parker/Pneutronics and everything is 12 volts DC.