We have two very compact solutions for the detection of small objects at large distances: Thanks to their small light spot, the FS/FE 12 RL and FS/FE 18 RL laser through-beam sensors are perfect for the detection of even very small parts with a size from only 0.2 mm! The adjustment of the systems proves to be very simple: Together with the visible red light, the large output signal indicator LED behind the receiver lens facilitates the precise alignment of transmitter and receiver.