The HL-G125-S-J from Panasonic Corporation is a Laser Displacement Sensor with Measure/Sensing Distance 250 mm ±150 mm, Wavelength 655 nm (Peak), Sampling Rate 200 µs, 500 µs, 1 ms, 2 ms, Resolution 20 µm, Supply Voltage 24 VDC. More details for HL-G125-S-J can be seen below.