The LDI-150-1 from WayCon Positionsmesstechnik is a Laser Displacement Sensor with Measure/Sensing Distance 0.05 to 100 m (natural surface), 40 to 150 m (reflective foil), Wavelength 620 to 690 nm, Repeatability ±150 to ±300 µm, Supply Voltage 12 to 30 VDC, Laser Power 1 mW. More details for LDI-150-1 can be seen below.