Omega PSW-800 Series are rugged economical switches with models for vacuum on up to 7500 PSIG. Its high overpressure protection allows sensitive, accurate switching at low pressures, while still having the ruggedness to survive in high pressure applications. It features a 12" free lead with 1/2" female plastic conduit fitting and 1/4" NPT male pressure port. It has an adjustable setpoint, allowing you to customize it for your specific needs. The PSW-800 Series is versatile and can be used in various applications, including industrial automation, process control, and HVAC systems.