Pepperl + Fuchs NPN Inductive Sensor 20 mm Detection Range, Block 118mm length, 10 30 V dc, IP69K
Inductive sensor 20 mm PNP, make contact 4 x 2.5 mm² max. 10. . .60 VDC -25. . .+85 °C, NBB20-U1-E2, Pepperl+Fuchs

Inductive sensor 40 mm PNP, make contact 4 x 2.5 mm² max. 10. . .60 VDC -25. . .+85 °C, NBN40-U1-E2, Pepperl+Fuchs