The PS1 from ELTROTEC is a precise laser proximity with background suppression and with a changeable light spot, that allows for setting a round or elliptical light spot in various sizes. Due to the switching frequency of 5 kHz the sensor can be used in assembly and supply systems running at high speed without missing on a single part. Because of its background suppression the PS1 will not be affected by either clear or changing surfaces. Detection of light or dark objects can be selected. The high resolution sensor allows detection of parts from 0.1 mm and up. Its sensing range varies from 55 to 300 mm. The secure signal transmission to control is done via a switchable impulse extension reducing signal dropout by 40 ms.