The LTS 25-04 | 8000-6472 from Vitrek is a Laser Displacement Sensor with Measure/Sensing Distance 4 mm, Wavelength 670 nm, Resolution 0.076 µm, Supply Voltage 15 to 28 VDC, Laser Power <5 mW. More details for LTS 25-04 | 8000-6472 can be seen below.