OMCH Inductive Proximity Sensor – M8 / M12 / M18 / M30, 3‑Wire DC 6–36V, NPN & PNP, NO & NC, 1–10 mm Detection

Build smarter, safer, and more reliable automation with a sensor you can trust. The OMCH inductive proximity switch series is a top‑rated, customer‑favorite solution for detecting metal objects with high precision. Whether you are upgrading a 3D printer, building a DIY CNC, or maintaining industrial equipment, this compact, user‑friendly sensor gives you stable detection, clean signals, and long service life – all at a price that makes professional performance accessible.

⭐ Key Benefits

• Reliable metal detection, every time: Inductive sensing delivers stable, contact‑free detection that is not affected by dust, oil, or light.
• Fits your project, big or small: Choose from M8, M12, M18, or M30 sizes and multiple sensing distances (1–10 mm) to match your space and target.
• Easy to wire, easy to integrate: Standard DC 3‑wire design (6–36V) with NPN or PNP, NO or NC options works with most controllers, PLCs, and microcontrollers.
• Built for tough environments: Rugged threaded metal housing and sealed construction help resist vibration, dust, and everyday industrial wear.
• Clear status at a glance: Bright indicator LED lets you see sensor status instantly – no guessing, no extra tools.
• Great value for money: Get professional‑grade performance without the premium price tag, ideal for both hobby and production use.

⚙ Where This Sensor Shines

• 3D printers & CNC machines: Use as a limit switch, homing sensor, or metal object detector for precise motion control.
• Conveyor & packaging lines: Detect passing metal parts for counting, sorting, or quality checks without physical contact.
• Robotics & automation projects: Add safe, repeatable position feedback to robotic arms and automated fixtures.
• Machine safety & maintenance: Monitor moving parts, doors, or guards to reduce downtime and improve operator safety.
• DIY and maker builds: Perfect for hobbyists who want industrial‑style sensing in compact, easy‑to‑use form factors.

🔍 Main Features

• Multiple body sizes: M8, M12, M18, M30 threaded cylindrical housings for flexible mounting.
• Adjustable detection range: Models with typical sensing distances of approx. 1/2 mm (M8), 2/4 mm (M12), 5/8 mm (M18), and 8/10 mm (M30), depending on variant.
• Output types: NPN or PNP, Normally Open (NO) or Normally Closed (NC) to match your control logic.
• Power supply: Wide DC 6–36V input range for compatibility with common industrial and DIY power systems.
• 3‑wire connection: Brown (V+), Blue (0V), Black (signal) for simple, standardized wiring.
• LED indicator: Built‑in status LED shows when the sensor is triggered.
• Non‑contact sensing: No mechanical wear, less maintenance, and longer lifetime than mechanical switches.
• Compact & neat look: Clean metallic finish and slim profile help your machine look as professional as it performs.

📊 Specifications

Note: Exact values may vary slightly by specific model (M8 / M12 / M18 / M30, NPN / PNP, NO / NC). Please select the variant that matches your project requirements.