---
product_id: 114983951
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: "A$24"
currency: AUD
in_stock: true
reviews_count: 8
category: "Spzcd Za"
url: https://www.desertcart.com.au/products/114983951-2sets-magnetic-reed-switch-normally-open-closed-nc-no-door
store_origin: AU
region: Australia
---

# Supports 5V/12V/24V DC Dual NC/NO contact types 3-15mm sensing range 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:** A$24
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your security game with magnetic precision you can trust!

## 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?** A$24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/114983951-2sets-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

- • **Dual Contact Flexibility:** Switch between Normally Open and Normally Closed modes to suit any alarm or device
- • **Durable & Lightweight Design:** Compact ABS casing weighing just 50g ensures easy installation without bulk
- • **Plug & Play Security Upgrade:** Quick-mount with standard 7x2.5mm holes for instant peace of mind
- • **Precision Magnetic Detection:** Reliable 3-15mm activation distance for seamless security integration
- • **Versatile Voltage Compatibility:** Works effortlessly with 5V, 12V, and 24V systems to fit your setup

## Overview

The SpzcdZa 2Sets Magnetic Reed Switch offers a compact, durable solution for door and window security with a 3-15mm sensing range. Compatible with 5V, 12V, and 24V DC systems, it features dual Normally Open and Normally Closed contacts for versatile alarm integration. Lightweight and easy to install, these switches provide reliable, customizable protection for homes, offices, and vehicles.

## Description

desertcart.com: SpzcdZa 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 : Industrial & Scientific

Review: Great product - 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: Switches work! - 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 |
| Actuator Type | Push Button |
| Best Sellers Rank | #350,841 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #95 in Reed Switches |
| Brand | SpzcdZa |
| Brand Name | SpzcdZa |
| Circuit Type | Normally Open |
| Color | Black |
| Connectivity Protocol | X-10 |
| Connector Type | 2.5mm/ |
| Contact Material | Metal |
| Contact Type | Normally Open |
| Control Method | Touch |
| Current Rating | 0.5 Amps |
| Customer Reviews | 4.3 out of 5 stars 272 Reviews |
| International Protection Rating | IP65 |
| Item Weight | 50 Grams |
| Manufacturer | SpzcdZa |
| Material Type | Acrylonitrile Butadiene Styrene |
| Model | SD190314002 |
| Mounting Type | Door Mount |
| Number of Items | 2 |
| Number of Positions | 2 |
| Operating Voltage | 24 Volts |
| Operation Mode | ON-OFF-ON |
| Switch Type | Magnetic Reed Switch |
| Terminal | Screw |
| UPC | 613852279458 |
| Wattage | 10 watts |

## Product Details

- **Operation Mode:** ON-OFF-ON
- **Current Rating:** 0.5 Amps
- **Operating Voltage:** 24 Volts
- **Contact Type:** Normally Open
- **Connector Type:** 2.5mm/
- **Brand:** SpzcdZa
- **Terminal:** Screw
- **Circuit Type:** Normally Open
- **Mounting Type:** Door Mount
- **Actuator Type:** Push Button

## 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

### ⭐⭐⭐⭐⭐ Great product
*by S***. on January 3, 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.

### ⭐⭐⭐⭐⭐ Switches work!
*by T***O on November 26, 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.

### ⭐⭐⭐⭐ Working well at 3.3V logic level. One was high-resistance at first, but fixed by a hard drop
*by P***T on December 8, 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 Australia*
*Store origin: AU*
*Last updated: 2026-03-21*