E3S-C Oil-resistive, Long-range Photoelectric Sens...- ... The model number of the Emitter is expressed by adding "-L" to the set model number (example: E3S-CT61-L 2M), the model number of the Receiver, by adding "-D" (example: E3S-CT61-D...
https://www.ia.omron.com/products/family/412/dimension.html
E3S-C Oil-resistive, Long-range Photoelectric Sens...- ...Emitter E3S-CT11-L-M1J 0.3M Receiver E3S-CT11-D-M1J 0.3M Vertical Pre-wired E3S-CT61 2M Emitter E3S-CT61-L 2M Receiver E3S-CT61-D 2M Pre-wired Connector (M12) E3S-CT61-M1J 0.3M Emitter ...
https://www.ia.omron.com/products/family/412/lineup.html
CSM_E3S-C_DS_E_9_4 1 Oil-resistant, Long-range Pho...- ...M1J 0.3M Emitter E3S-CT11-L-M1J 0.3M Receiver E3S-CT11-D-M1J 0.3M Pre-wired E3S-CT61 2M Emitter E3S-CT61-L 2M Receiver E3S-CT61-D 2M Pre-wired Connector (M12) E3S-CT61-M1J 0.3M Emitter ...
https://www.ia.omron.com/data_pdf/cat/e3s-c_ds_e_9_4_csm424.pdf