The Autonics Cylindrical Type Proximity Sensor PR12-4DN is a reliable inductive sensor for metal object detection in industrial automation. Furthermore with a compact M12 cylindrical body and a sensing distance of up to 4mm (for standard metal targets), it is ideal for use on machines, conveyors, assembly lines and custom jigs. Additionally this model is a DC 3‑wire, NPN output sensor, which can be connected easily to PLCs, relays, counters and other control devices. It detects metal objects without physical contact , reducing mechanical wear and improving the life of your equipment compared to mechanical limit switches. Even better the PR12-4DN features a rugged housing, good resistance to noise and stable performance in harsh environments. A built‑in operation LED makes it easy to see the ON/OFF status from the front of the sensor. Moreover Autonics is a well‑known brand in industrial sensing and control, trusted in factories and automation projects worldwide. Features: M12 cylindrical inductive proximity sensor 4mm sensing distance for metal targets (typical) DC 3‑wire NPN output (NO – model dependent) Non-contact detection, long mechanical life Operation LED for easy status indication Specifications: Model: Autonics PR12-4DN Type: inductive proximity sensor, cylindrical M12 Sensing distance: approx. 4mm (standard target) Power supply: 12–24V DC (wide range) Output: NPN transistor, 3‑wire, max load current (e.g. 200mA) Uses: Position sensing on conveyors and packaging machines Metal part detection in assembly and machining lines End‑of‑stroke detection on cylinders and actuators Speed and presence detection in automation systems DIY and OEM machine building projects Package Includes: 1 x Autonics Cylindrical Type Proximity Sensor PR12-4DN