The LK-H155 from Keyence Deutschland is a Laser Displacement Sensor with Measure/Sensing Distance 150 mm ±40 mm, Wavelength 655 nm, Sampling Rate 2.55 µs, 5 µs, 10 µs, 20 µs, 50 µs, 100 µs, 200 µs, 500 µs, 1000 µs, Repeatability 0.25 µm, Laser Power 4.8 mW. More details for LK-H155 can be seen below.