Series PSE digital pressure switches allow pressure to be controlled from a remote location. The PSE100 series controller has an easy to read, large, 4 digit LED display. Display units can be easily selected and changed. Series PSE510 is compact and lightweight, allowing the sensor to be mounted where needed. The use of stainless steel for all wetted parts (SUS630 for diaphragm, SUS304 for fitting) allows the PSE520 pressure sensor to be used in a wide variety of gas and fluid applications.