PS-3150 NO Magnetic Reed Sensor Switch – Adjustable Proximity

PS-3150 Normally Open Proximity Magnetic Reed Sensor Switch

The PS-3150 NO Proximity Magnetic Reed Sensor Switch is a compact, adjustable inductance-based magnetic sensor designed for reliable proximity detection in DIY electronics, automation projects, door monitoring systems, and hobbyist builds. With its normally open (NO) switching output and high-frequency response, this reed sensor delivers consistent, repeatable performance across a wide range of applications.

Key Features

• Normally Open (NO) Output: Circuit closes only when a magnetic field is detected — ideal for door, gate, and proximity sensing applications.
• Adjustable Design: Fine-tune the sensor's sensitivity and positioning to suit your specific project requirements.
• High-Frequency Response: Capable of detecting rapid switching events, making it suitable for fast-moving mechanical or automated systems.
• Inductance Sensor Theory: Operates on reliable inductance-based detection for stable, interference-resistant performance.
• Polymer Construction: Lightweight yet durable polymer housing protects internal components from everyday wear.
• Compact & Lightweight: Weighing just 5.1g, the PS-3150 is easy to integrate into tight spaces and enclosures.
• Customizable Quantities: Available in 1-piece, 5-piece, and 10-piece packs — perfect for prototyping or larger project runs.

Specifications

What Can You Use It For?

• Door and window open/close detection
• DIY home automation and smart-home projects
• Robotics and Arduino/Raspberry Pi sensor builds
• Proximity switching in electronic circuits
• Industrial and hobbyist prototyping

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Frequently Asked Questions

Q: What does "Normally Open (NO)" mean for the PS-3150 reed sensor switch?

A: A Normally Open (NO) reed sensor switch means the circuit is open (no current flows) when no magnetic field is present. When a magnet comes within range, the reed switch closes, completing the circuit and triggering the connected device. This is the standard configuration for door sensors, proximity alarms, and automation triggers.

Q: How do I adjust the sensitivity of the PS-3150 magnetic reed sensor?

A: The PS-3150 features an adjustable design that allows you to reposition or fine-tune the sensor relative to the magnet source. By adjusting the mounting distance or angle, you can control at what proximity the switch activates, giving you flexibility for different project setups and enclosures.

Q: Is the PS-3150 compatible with Arduino, Raspberry Pi, or other microcontroller platforms?

A: Yes! The PS-3150 normally open magnetic reed sensor outputs a simple switching signal that is compatible with most microcontroller platforms including Arduino and Raspberry Pi. It integrates easily into GPIO-based circuits for proximity detection, door monitoring, or any switching application.

Q: How many sensors come in one order?

A: The PS-3150 is available in three quantity options: 1 piece, 5 pieces, or 10 pieces. Choose the pack size that best fits your prototyping or production needs.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.