The VDM28-50-R1-IO/73c/110/122 from Pepperl+Fuchs is a Laser Displacement Sensor with Measure/Sensing Distance 0.2 to 50 m, Wavelength 660 nm, Response Time 10 ms, Supply Voltage 18 to 30 VDC. More details for VDM28-50-R1-IO/73c/110/122 can be seen below.