243-0020 | Signal Selector, Lowest Pressure, Pneumatic, DA, Dual Input, Single Output | Siemens

This 243 Lowest Pressure Signal Selector is a dual input, single output logic device for use in pneumatic control systems. It is lightweight, can be mounted in any position, can be supported by the 1/4" poly tubing connected to the input and output fittings, and can be used as a volume amplifying relay. The operating ambient temperature is 40 degrees Fahrenheit minimum, 140 degrees Fahrenheit maximum.