Ring Inductive Proximity Sensor (6mm Hole Diameter)

Ring Inductive Proximity Sensor (6mm Hole Diameter) is designed for reliable detection of metal objects passing through or entering a sensing ring. Powered by a wide 6–36V supply, this industrial inductive detection module delivers stable NPN normally‑open output suitable for automation control, equipment monitoring, and embedded electronics projects. Fast response speed below 1ms enables accurate recognition of rapidly moving small metal components. A durable brass nickel‑plated flame‑retardant enclosure combined with IP66 protection ensures dependable performance in demanding factory environments as well as outdoor installations.

Figure: Ring Inductive Proximity Sensor

High‑Speed Metal Detection

This inductive ring detector identifies metallic objects traveling through the sensing aperture with a response time of less than 1ms. Such rapid switching capability enables reliable monitoring of high‑speed production lines where small components such as screws, washers, or nuts pass quickly through detection points. Accurate switching performance and a 300Hz frequency allow the sensing unit to maintain stable detection even in dynamic mechanical systems.

Adjustable Sensitivity with Visual Status Indicator

An integrated sensitivity adjustment knob allows precise tuning for different metal sizes and detection distances. Clockwise rotation increases sensing sensitivity, allowing adaptation for various industrial or experimental conditions. An onboard LED indicator provides clear visual feedback whenever a metal object is detected, simplifying system debugging and installation in automation equipment or custom electronic assemblies.

Rugged Industrial Construction

A brass nickel‑plated flame‑retardant housing provides strong mechanical durability and corrosion resistance. The sealed structure supports IP66 protection, helping the inductive sensing module resist dust, moisture, and harsh environmental exposure. Reliable operation across a temperature range of −25℃ to 65℃ ensures stable sensing capability in manufacturing workshops, logistics machinery, or outdoor monitoring installations.

This ring‑type metal sensing device fits applications such as fastener counting, wire breakage monitoring, automated assembly inspection, and mechanical jam detection. Compact dimensions and long 2‑meter wiring simplify integration into production lines, robotic mechanisms, and industrial automation systems where precise metal object detection is required.

• Ring‑type inductive sensor designed for detecting metal objects passing through the sensing hole
• Wide operating voltage range: 6–36V
• Fast response time under 1ms for high‑speed detection
• NPN normally‑open output for industrial control systems
• Adjustable sensitivity knob for different detection conditions
• Onboard LED indicator for real‑time detection status
• Rugged brass nickel‑plated flame‑retardant housing
• IP66 protection suitable for harsh environments
• Capable of detecting small metal components such as screws and washers

• Voltage: 6-36V
• Hole Diameter: 6mm
• Current: 300mA
• Detection Distance: 10mm
• Output: NPN (normally-open)
• Detectable Object: metal
• Wire Length: about 2m
• Sensing Type: inductive
• Level Signal: High/Low level
• Operating Temperature & Humidity: -25℃~65℃, 35-95%HR
• Switch Frequency: 300Hz
• Dimension: 68mm*39mm*20mm/2.68*1.54*0.79inch

• Metal fastener counting and detection
• Wire breakage monitoring systems
• Automated assembly line inspection
• Mechanical jam detection in conveyor systems
• Industrial automation sensing
• Machinery safety and monitoring