The Rexroth R901106498 HED8OH-20/100K14KS is a robust hydraulic pressure switch designed for precise pressure monitoring and control in various industrial hydraulic systems. As a piston-type pressure switch, it reliably actuates a micro switch to open or close an electrical circuit when a pre-set pressure value is reached. This model features a user-friendly rotary knob with a scale for easy and accurate pressure adjustments up to 100 bar. Its durable construction ensures long service life and high repeatability, making it an essential component for applications requiring dependable pressure-dependent control and safety functions.