Inductive Proximity Switch Sn=25 mm conditional flush, 10-55VDC, PNP-n/o + n/c, S.C.P., PG36x70mm, brass nickel plated, plug S4 (M12x1), 1=+, 3=-, 2=n/o, 4=n/c, Include: 2 Nuts. Inductive Proximity Switch Sn=25 mm conditional flush 10-55VDC PNP-n/o + n/c S.C.P. PG36x70mm Brass nickel plated Plug S4 (M12x1) 1=+ 3=- 2=n/o 4=n/c Includes: 2 Nuts Proxitron GS4 2409G is a high-quality sensor designed for industrial applications. It is ideal for monitoring distances and detecting objects in various industrial settings. This reliable sensor can be purchased at PLC2Day, making it easily accessible for your industrial automation needs.