The VDM28-8-L1-IO/110/115b/122 from Pepperl+Fuchs is a Laser Displacement Sensor with Measure/Sensing Distance 0.2 to 8 m, Wavelength 660 nm, Response Time 10 ms, Supply Voltage 10 to 30 VDC. More details for VDM28-8-L1-IO/110/115b/122 can be seen below.