The HL-G108A-RA-C5 from Panasonic Corporation is a Laser Displacement Sensor with Measure/Sensing Distance 82.9 mm ±10 mm, Wavelength 655 nm (Peak), Sampling Rate 200 µs, 500 µs, 1 ms, 2 ms, Resolution 2.5 µm, Supply Voltage 24 VDC. More details for HL-G108A-RA-C5 can be seen below.