The CD22-100A2 from Optex AOC is a Laser Displacement Sensor with Measure/Sensing Distance 100 mm ±50 mm, Wavelength 655 nm, Sampling Rate 500 µs, 1000 µs, 2000 µs, 4000 µs, AUTO, Supply Voltage 12 to 24 VDC, Laser Power 1 mW. More details for CD22-100A2 can be seen below.