Siemens model 1P7346195 assembly. Includes SICK hazardous area proximity sensor model PLS101-312. Also labeled (1P)-7359156 (2P) Rev 4, 7345957 Rev C, and S05420239. Appears new, comes in box with foam packaging as shown. This unit was located in a repair/experimental department; the circuit board may have been modified or otherwise not be normal for this Siemens part number. Examine pictures carefully.