This 243 Lowest and Highest Signal Selector is a six-input dual output logic device for use in pneumatic control systems

This 243 Lowest and Highest Signal Selector is a six-input dual output logic device for use in pneumatic control systems. It selects highest lowest or both is lightweight is easily supported in-line or mounted using provided hardware and has an operating ambient temperature of 40 degrees Fahrenheit minimum 140 degrees Fahrenheit maximum.