The VDM28-50-R1-IO/110/116/122-Ex from Pepperl+Fuchs is a Laser Displacement Sensor with Measure/Sensing Distance 0.5 to 50 m, Wavelength 660 nm, Response Time 10 ms, Supply Voltage 10 to 30 VDC. More details for VDM28-50-R1-IO/110/116/122-Ex can be seen below.