Contrinex Inductive proximity sensor M18 shielded PNP DW-AS-703-M18-002

Very long switching distance on steel (3 fold). Almost the same long switching distance (3x) on aluminium, brass, etc. too. One-piece housing (stainless steel) including active surface makes the sensor extremely rugged and very waterproof.

Price: £ 91.99 from Conrad Electronic