IP67 or IP68 protective structures; Detect N-pole only, S-pole only, and both N- and S- pole; Detection poles:both N- and S-pole; Sensitivity N- and S-pole:1.5〜2.5mT; Sensitivity N- or S-pole:1.0〜1.5mT; Output:NPN / PNP; Protective structure:IP67 / IP68