The LK-H057 from Keyence Deutschland is a Laser Displacement Sensor with Measure/Sensing Distance 50 mm ±10 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 0.025 µm, Laser Power 0.95 mW. More details for LK-H057 can be seen below.