Autonics PR12-4DN Inductive Proximity Sensor

The Autonics PR12-4DN is a cylindrical inductive proximity sensor (12 mm diameter) with a 4 mm sensing distance for non‑contact detection of metal targets in compact automation layouts. It operates from 10–30 V DC and, in the NPN normally open configuration, delivers a three‑wire output through an M12 connector with a 2 m cable. Built for harsh environments, it carries an IP67 rating and a robust metal housing suited to dirty or washdown settings. It is used in industrial automation to detect metal targets non‑contactly, enabling reliable line monitoring and precision positioning in tight spaces. The PR12‑4DN is the 4 mm sensing variant of Autonics’ PR12 series, combining a small cylindrical form factor with standard DC operation within a 10–30 V supply window.