PR18-8DN Inductive Proximity Switch Sensor

The PR18-8DN proximity switch sensor is a contactless inductive sensor used to detect the presence of metal objects without any physical touch. It sends an output signal the moment a metal target enters its sensing zone, making it a reliable building block for automation, positioning, counting, and motor or pump control. It suits home workshops, irrigation pump panels, farm machinery, and small automation projects where you need a durable switch that does not wear out from mechanical contact.

Key features

• Model PR18-8DN inductive proximity switch for accurate metal detection.
• Contactless operation means no moving parts to wear out, so it lasts longer than mechanical limit switches.
• Compact cylindrical body that mounts easily into control panels and machine frames.
• Fast, repeatable switching suitable for counting and position sensing.
• Commonly compatible with standard PLCs, relays, and control circuits.

Typical uses

• Position and end-stop detection on machines and conveyors.
• Counting metal parts or rotating components.
• Pump, valve, and motor control in irrigation and water systems.
• DIY automation and electronics learning projects.

How to choose / tips

Confirm the output type (NPN/PNP and normally open/closed) matches your controller input, and check that the supply voltage suits your panel. Mount the sensor so the metal target passes within its sensing range, and keep it clear of vibration and heavy moisture for steady performance.

Why tna W rna

At tna W rna we focus on reliable, well-sourced parts for makers, farmers, and projects across Egypt. Enjoy fast delivery nationwide and the convenience of cash on delivery.