Ultrasonic proximity sensor, M18 nickel‑plated brass housing, sensing range 50‑300 mm, supply 12‑30 VDC, PNP NO switching output, M12 4‑pin male connector, IP67, operating temp ‑25℃~+70℃, reverse‑polarity & short‑circuit protection, LED status indicator, cylindrical threaded body, CE certified
