The BES 516-355-BO-C-05 is an inductive proximity sensor with 5 mm detection range, M18x1 threaded housing, and operates at 10-30 VDC. This NPN normally open sensor features flush mounting capability, 500 Hz switching frequency, 5 m PVC cable, and IP68 protection rating. (Manufacturer discontinued model, recommended alternative: BES M18MP-NSC50B-BV05)
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