Connections Appearance Sensing method Sensing distance Operating modes Output / timer functions Model NPN output PNP output Prewired Horizontal Through-beam 7 m Light-ON Dark-ON (selectable) --- E3S-AT11 E3S-AT31 With timer and self-diagnostic functions E3S-AT21 E3S-AT41 Retroreflective 0.1 to 2 m (polarized) --- E3S-AR11 E3S-AR31 With timer and self-diagnostic functions E3S-AR21 E3S-AR41 Diffuse reflective 10 cm (light source: infrared) --- E3S-AD13 E3S-AD33 With timer and self-diagnostic functions E3S-AD23 E3S-AD43 20 cm --- E3S-AD11 E3S-AD31 With timer and self-diagnostic functions E3S-AD21 E3S-AD41 70 cm (light source: infrared) --- E3S-AD12 E3S-AD32 With timer and self-diagnostic functions E3S-AD22 E3S-AD42


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