DAWEI LJ18A3‑5‑Z/BX inductive proximity sensor, M18 shielded flush‑mount type, 3‑wire DC6‑36V, NPN Normally‑Open output, sensing distance 5mm, IP67, nickel‑plated brass housing, with LED status indicator, 2m PVC cable. Non‑contact metal position detection for NPN‑type PLC input.