The NBB8-18GM50-E2-V1 is an Inductive Proximity Sensor that is the preferred choice for the majority of applications requiring accurate, non-contact detection of metallic objects in machinery or automation equipment. Pepperl+Fuchs offers innovative, high quality inductive sensor to meet the needs of the worldwide automation and process control markets. Standard inductive sensor features smooth or threaded stainless housings, polarity reversal and short-circuit protected, LED status indication.