---
product_id: 46346044
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: "122 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Spzcd Za"
url: https://www.desertcart.dk/products/46346044-2sets-magnetic-reed-switch-normally-open-closed-nc-no-door
store_origin: DK
region: Denmark
---

# Trigger range 5-20mm Supports 5V/12V/24V DC Max switch current 500mA 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:** 122 kr
**Availability:** ✅ In Stock

## Summary

> 🔐 Secure your space with precision — never miss a close!

## 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?** 122 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/46346044-2sets-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

- • **Easy Installation:** Compact 55x12.5x11.5mm design with included screws for quick surface mounting on wood.
- • **Trusted Durability:** Rated for 10W power and 0.5A current, built to last in indoor security applications.
- • **Dual Mode Flexibility:** Switch between Normally Open (NO) and Normally Closed (NC) for versatile security setups.
- • **Precision Trigger Range:** Reliable activation within 5-20mm ensures accurate door/window status detection.
- • **Wide Voltage Compatibility:** Operates seamlessly across 5V, 12V, and 24V DC systems to fit your existing devices.

## Overview

This 2-set Magnetic Reed Switch kit offers reliable door and window security with dual NC/NO contact types, supporting low voltage devices (5V-24V DC). Featuring a precise 5-20mm trigger range and easy surface mounting, it’s ideal for enhancing alarm, GPS, and LED systems indoors. Rated for 10W power and 0.5A current, these compact switches deliver durable, versatile protection for your home or vehicle.

## Description

Buy 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: Home Security Systems - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Work perfectly, great value - These magnetic reed switches work perfectly. One is mounted on the inside of our garage door and wired to a small LED light in the house. This helps remind us to not forget to close the garage door. The reed switches can be normally open or normally closed. Great value, and it is still working with no trouble after 7 years.
Review: Work well but don't use outside - These weren't made for outside use but I tried anyway and it failed, that said it's not the parts fault. If I had fully sealed it that may have worked but I just tried some silicone and that apparently wasn't enough. If you do need an outside one search here for garage sensor, they are 3X cost (~$19) but made for outside.

## Features

- ➤➤Product Name: Magnetic Door Swith; Maximum Switch Voltage: 100V;Contact Capacity: 500(mA) (Maximum Switch Current);Rated Power: 10W(Maximum Switch Power); Contact Type: NC/NO/COM,Trigger Range: 5-20mm;
- ➤➤Great for alarm,LED,Relay,GPS low voltage devices...etc.,Great for pick-ups with sliding rear window.Effective for Theft Deterrence.
- ➤➤Magnetic Contact sensors can be added to an existing wired Alarm Systems. They are ideal for protecting doors,Surface-mounted magnetic contact, ideal wooden door or window use.
- ➤➤Package Content: 2 Sets x Magnetic Door Swith; Size: 55*12.5*11.5mm / 2.17" x 0.45" x 0.45"(L*W*H) a package of screws for mounting on wood only.
- ➤➤【After-Sales Service】 If you do not satisfy with Magnetic Reed Switch or if you have any questions, please come to us anytime. We would solve all the problems to your satisfaction. We offer 12 hours quick response service. We promise to solve any problem for you.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0735BP1K4 |
| Actuator Type | Push Button |
| Best Sellers Rank | #360 in Home Security Systems |
| Brand | SpzcdZa |
| Circuit Type | 1-way or 2-way |
| Color | White |
| Compatible Devices | Alarm systems, LED devices, Relays, GPS devices |
| Connectivity Protocol | X-10 |
| Connector Type | Screws |
| Contact Material | Nickel |
| Contact Type | Normally Open |
| Control Method | App |
| Control Type | state detection |
| Current Rating | 0.5 Amps |
| Date First Available | June 23, 2017 |
| International Protection Rating | IP65 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.64 ounces |
| Item model number | 3bdd6712-47c9-400d-87cd-099a6d8b19eb |
| Manufacturer | SpeedDa |
| Mounting Type | Door Mount |
| Number of Positions | 2 |
| Operating Voltage | 100 Volts |
| Operation Mode | OFF-NONE-ON |
| Terminal | Screw |
| Unit Count | 2.0 Count |
| Vehicle Service Type | pick-up trucks |
| Wattage | 10 watts |

## Product Details

- **Brand:** SpzcdZa
- **Circuit Type:** 1-way or 2-way
- **Connector Type:** Screws
- **Contact Type:** Normally Open
- **Current Rating:** 0.5 Amps
- **Material:** Wood,Wooden
- **Operating Voltage:** 100 Volts
- **Operation Mode:** OFF-NONE-ON
- **Switch Type:** DIP Switch
- **Terminal:** Screw

## 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/614t8OR-X2L.jpg)

## Questions & Answers

**Q: can I use this magnetic switch to open and close rv steps**
A: I would advise using these to operate a power relay.  The contacts in the reed switch are delicate, by using the reed switch to open and close a HD relay, the relay could then operate a hydraulic system, light duty, to raise and lower your steps.   Seek help from an electrician, to design a suitable circuit.

W.

**Q: What size wire should I use?**
A: 18 gauge 2 wire [18/2] or 22 gauge 2 wire [22/2] security alarm cable works best.

**Q: Porque se calienta el interruptor magnético ???**
A: Es normal que tenga una temperatura  que no exceda mucho  siempre que esté. Respetando  el amperaje  de la capacidad  de los switch. Eso kiere decir que ocupa poner luces  led y es recomendable  no conectar muchas luces en un solo switch

**Q: It's a roll up garage door?**
A: it MIGHT work, but I would not recommend this set for a rough environment like a garage. Instead find one like https://www.amazon.com/Honeywell-Ademco-Overhead-Door-Contacts/dp/B0006M1I1W/ref=sr_1_4?ie=UTF8&qid=1518396534&sr=8-4&keywords=garage+door+alarm+sensor Honeywell is a good brand for sensors and panels.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Work perfectly, great value
*by T***H on August 31, 2025*

These magnetic reed switches work perfectly. One is mounted on the inside of our garage door and wired to a small LED light in the house. This helps remind us to not forget to close the garage door. The reed switches can be normally open or normally closed. Great value, and it is still working with no trouble after 7 years.

### ⭐⭐⭐⭐⭐ Work well but don't use outside
*by D***E on August 4, 2018*

These weren't made for outside use but I tried anyway and it failed, that said it's not the parts fault. If I had fully sealed it that may have worked but I just tried some silicone and that apparently wasn't enough. If you do need an outside one search here for garage sensor, they are 3X cost (~$19) but made for outside.

### ⭐⭐⭐⭐ Reed switch
*by M***W on October 24, 2025*

The reed switcheabwoeked well. I needed a way to turn off power without opening water proof box. This provided a great solution. I just used the normally closed contact to power my project. Reseting power just required swipe of magnite.

## Frequently Bought Together

- 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
- Fermerry 22 AWG Stranded Wire Spool 10ft Each 6 Colors Flexible 22 Gauge Silicone Hook up Wire Kit Electrical Tinned Copper Wire
- 22 AWG Stranded Wire Kit – Silicone Coated Copper Wires 22 Gauge Pre-Tinned 23ft/7m Each Spool, 6 Colors (Black, Red, Yellow, Green, Blue, White), Electrical Jumper Wire Hook Up Wire Kit from Plusivo

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.dk/products/46346044-2sets-magnetic-reed-switch-normally-open-closed-nc-no-door](https://www.desertcart.dk/products/46346044-2sets-magnetic-reed-switch-normally-open-closed-nc-no-door)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-01*