Amphenol Piher PSE-290 Compact Panel Mount Hall-Effect Rotary Sensors with Mechanical Stop are based on contactless hall-effect technology and deliver high accuracy and linearity in a compact package. By integrating a mechanical stop at 290°, unintentional overtravel is mechanically prevented. This makes the PSE-290 especially suitable for human-machine input. Increased rotational life and robustness against humidity, vibration, and shock make Amphenol Piher PSE-290 Panel Mount Hall-Effect Rotary Sensors perfectly suited for harsh industrial and transportation environments. These absolute sensors will not lose their values even after a power failure.