Leuze electronic lsr 2 miniature throughbeam photoelectric sensors tx and rx leuze electronic 50112131 this miniature throughbeam photoelectric sensor receiver has a bipolar transistor output and is matched to the transmitter 64 3810 the sensor has a miniature temperature stable housing that is ip67 protected and has two inlaid metal fastening sleeves for secure mounting leuze electronic 50112131 lser242 150 s8 throughbeam photoelectric sensor rx