The HL-G103A-RS-J from Panasonic Corporation is a Laser Displacement Sensor with Measure/Sensing Distance 26.3 mm ±2 mm, Wavelength 655 nm (Peak), Sampling Rate 200 µs, 500 µs, 1 ms, 2 ms, Resolution 0.5 µm, Supply Voltage 24 VDC. More details for HL-G103A-RS-J can be seen below.