In this application, the diffuse proximity light grid from the SGP series from Telco Sensors consistently detects wooden planks, beams, plates and even thin wooden slats. Independent of the position where the wood passes over the transport system. Due to the high diversity of products, it is impossible to work horizontally from above, or with a transmitter/receiver configuration. But, a light grid sensor on the bottomside of the conveyor and between the rollers is the perfect solution. The SGP light grid detects products over the entire active part of the light grid profile with a maximum (adjustable) range of 130 cm. The light curtain is available in different heights.