The Pepperl+Fuchs NJ8-18GK-N is an 8 mm non-flush inductive proximity sensor with a NAMUR output, engineered for high reliability in demanding industrial applications, including hazardous areas . This robust sensor detects metallic objects without physical contact and is designed for easy integration into safety systems, supporting use up to Safety Integrity Level (SIL) 2 according to IEC 61508 .Key technical specifications include a rated operating distance of 8 mm and an assured operating distance of 0 to 6.48 mm . It operates as a Normally Closed (NC) device with a two-wire connection . The sensor requires an approved switching amplifier for operation, with a nominal voltage of 8.2 V (Ri approx. 1 kΩ) and provides a switching frequency of 0 to 200 Hz . Its housing, made of PBT/PPS, offers a high IP66/IP68 protection rating,ensuring durability in harsh environments, and it can withstand an ambient temperature range of -25 to 100 °C (-13 to 212 °F) . The device comes with a 2-meter PVC cable .