This 8-digit, 14-segment liquid crystal display fibre optic amplifier is available in a small DIN-rail mountable housing of only 30x60x10mm.The slim device permits optimum stacking, even in large numbers, especially in systems where space is limited. The long sensing distance with diffuse fibres can be set manually or by a remote IO-Link teach-in facility with additional fine adjustment over a sensing range of 20 to 200mm. The amplifier can be adjusted in 1mm steps to precisely set the operating distance. The signal strength and threshold are digitally indicated on the LCD when adjusting. Depending on the background, the detection of some products, can be hard to set-up correctly. It has a two stage static teach function which distinguishes the target from the surroundings and ensures the correct adjustment for reliable detection. The dynamic teach function lets you pass the target in front of the fibre tip a few times before it automatically calculates the average differential to ensure target detection.