The HL-G105A-RS-J from Panasonic Corporation is a Laser Displacement Sensor with Measure/Sensing Distance 47.3 mm ±5 mm, Wavelength 655 nm (Peak), Sampling Rate 200 µs, 500 µs, 1 ms, 2 ms, Resolution 1.5 µm, Supply Voltage 24 VDC. More details for HL-G105A-RS-J can be seen below.