---
product_id: 376163151
title: "2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light"
brand: "spzcdza"
price: "€ 40.91"
currency: EUR
in_stock: true
reviews_count: 5
category: "Spzcd Za"
url: https://www.desertcart.es/products/376163151-2sets-magnetic-reed-switch-normally-open-closed-nc-no-door
store_origin: ES
region: Spain
---

# 3-15mm sensing range Dual NC/NO contact modes Supports 5V/12V/24V DC 2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light

**Brand:** spzcdza
**Price:** € 40.91
**Availability:** ✅ In Stock

## Summary

> 🔐 Secure your space with smart magnetic precision!

## Quick Answers

- **What is this?** 2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light by spzcdza
- **How much does it cost?** € 40.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/376163151-2sets-magnetic-reed-switch-normally-open-closed-nc-no-door)

## Best For

- spzcdza enthusiasts

## Why This Product

- Trusted spzcdza brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Installation:** Screw-mounted design ensures quick, hassle-free setup in minutes
- • **Robust & Reliable Build:** Durable ABS housing and 0.5A max current rating for long-lasting security performance
- • **Dual Contact Flexibility:** Switch between Normally Open or Normally Closed modes to fit any security setup
- • **Precision Magnetic Sensing:** Detects door/window status within 15mm for instant alerts
- • **Universal Voltage Compatibility:** Works seamlessly with 5V, 12V, and 24V systems for versatile integration

## Overview

The SpzcdZa 2Sets Magnetic Reed Switch offers versatile, dual-mode (NO/NC) magnetic sensing with a 3-15mm detection range, compatible with 5V, 12V, and 24V DC systems. Designed for easy screw-mount installation, these durable ABS switches provide reliable door and window security for homes, offices, and vehicles, ensuring seamless integration with alarms and GPS devices.

## Description

☻ Switch Type: NO/NC, circuit is connected when magnet is near the switch. ☻ The reed switch is an electrical switch operated by an applied magnetic field. ☻Designed for use with alarm systems. ☻Great for use in family and factory window, door. etc. ☻ Screw Mounted for easily install.

Review: The SpzcdZa 2Sets Magnetic Reed Switch is a game-changer when it comes to door and window security. These switches are designed to keep your home or office safe and sound, and they do it effortlessly. With a variety of voltage options (5V, 12V, and 24V), these magnetic reed switches are versatile and compatible with various devices, including GPS systems and alarms. What sets them apart is their dual functionality. They can be used as normally open (NO) or normally closed (NC) switches, depending on your needs. Imagine a scenario where you've installed these switches on your doors and windows. They seamlessly detect any unauthorized entry, triggering an alarm or alerting your security system. The peace of mind these switches offer is unparalleled. What's even more impressive is the reliability of the SpzcdZa Magnetic Reed Switch. They are built to last and withstand the test of time, ensuring your security remains top-notch. Plus, they're incredibly easy to install, making it a hassle-free experience. In a world where security is paramount, the SpzcdZa 2Sets Magnetic Reed Switch is a must-have. It's not just a product; it's your guardian, providing security and peace of mind that you can rely on day in and day out. Don't compromise on safety; choose SpzcdZa for a safer tomorrow.
Review: These switches worked for my garage door. I took an old garage door opener, added a Raspberry Pi and these switches and made my garage door wireless to recognize when it’s open or closed.

## Features

- ➤ Product Name: Magnetic Door Swith; Color: Black; Material: ABS;Net Weight: 50g
- ➤Transmitting Distance: 3-15mm;Mounting Hole Size: 7 x 2.5mm/ 0.28" x 0.1"(L*W);Size: 55 x 12 x 11mm / 2.2" x 0.47" x 0.43"(L*W*H)
- ➤Package Content: 2 Sets x Magnetic Door Swith; Contact Type: NC/NO/COM
- ➤Working Voltage: 100V; Rated Power: 10W; Contact Capacity: 0.5A(Maximum Switch Current)
- ➤This switch contains normally closed and normally open contacts,Great for use in family and factory window, door. etc. Help deter theft with this magnetic switch that is compatible with most vehicles with a sliding window.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PRR33DF |
| Best Sellers Rank | #114,507 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,145 in Electrical Wall Switches |
| Item model number | SD190314002 |
| Manufacturer | SpzcdZa |

## Product Details

- **Connector type:** Screws
- **Contact type:** Normally Open
- **Current rating:** 0.5 Amps
- **Operating voltage:** 100 Volts
- **Operation mode:** ON-OFF-ON

## Images

![2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light - Image 1](https://m.media-amazon.com/images/I/51qicZtqQWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***. on 3 January 2024*

The SpzcdZa 2Sets Magnetic Reed Switch is a game-changer when it comes to door and window security. These switches are designed to keep your home or office safe and sound, and they do it effortlessly. With a variety of voltage options (5V, 12V, and 24V), these magnetic reed switches are versatile and compatible with various devices, including GPS systems and alarms. What sets them apart is their dual functionality. They can be used as normally open (NO) or normally closed (NC) switches, depending on your needs. Imagine a scenario where you've installed these switches on your doors and windows. They seamlessly detect any unauthorized entry, triggering an alarm or alerting your security system. The peace of mind these switches offer is unparalleled. What's even more impressive is the reliability of the SpzcdZa Magnetic Reed Switch. They are built to last and withstand the test of time, ensuring your security remains top-notch. Plus, they're incredibly easy to install, making it a hassle-free experience. In a world where security is paramount, the SpzcdZa 2Sets Magnetic Reed Switch is a must-have. It's not just a product; it's your guardian, providing security and peace of mind that you can rely on day in and day out. Don't compromise on safety; choose SpzcdZa for a safer tomorrow.

### ⭐⭐⭐⭐⭐ Review
*by T***O on 26 November 2025*

These switches worked for my garage door. I took an old garage door opener, added a Raspberry Pi and these switches and made my garage door wireless to recognize when it’s open or closed.

### ⭐⭐⭐⭐ Review
*by P***T on 8 December 2019*

I have several sets on 50-100' wire lengths back to an MCP23017 I/O expander chip at 3.3V, set to generate an IRQ on edge events. As with most switches, they were quite "bouncy" at first, but a 1uF cap across each (at the controller end) solved that Contact resistance was generally 3-6 ohm, which was fine, but one side of one of the switches (I can't remember if it was NO or NC side) was up over 600-800 ohms at first, varying slightly on every cycle, but never as bad as the one in Nancy's review. However, this "fixed" itself after I accidentally dropped it about 5' on to a concrete floor, and has operated reliably ever since! I used large enough pull-up resistors (22k?) on these sense lines to hopefully tolerate that level of contact resistance if it returns, but after 4 months, it's still under 10 ohms. The double-throw design of reed relays inside these could make intermittent marginal contact more likely. I'd have chosen NC-only (closed when magnet is present) if those were available for the same price. You really don't want to run any significant current or voltage across these. It may work at first, but contacts are unlikely to last very long in this role. Use a FET, etc. if needing to directly switch a load.

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-23*