---
product_id: 231344510
title: "Gebildet 3 Sets NO/NC Black Magnetic Switch Wiring Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System"
brand: "gebildet"
price: "€ 24.14"
currency: EUR
in_stock: true
reviews_count: 13
category: "Gebildet"
url: https://www.desertcart.nl/products/231344510-gebildet-3-sets-no-nc-black-magnetic-switch-wiring-recessed
store_origin: NL
region: Netherlands
---

# Supports 3V-48V DC power Max switching voltage 100V Durable ABS, 1,000,000+ cycles Gebildet 3 Sets NO/NC Black Magnetic Switch Wiring Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System

**Brand:** gebildet
**Price:** € 24.14
**Availability:** ✅ In Stock

## Summary

> 🔒 Elevate your security game with invisible precision!

## Quick Answers

- **What is this?** Gebildet 3 Sets NO/NC Black Magnetic Switch Wiring Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System by gebildet
- **How much does it cost?** € 24.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/231344510-gebildet-3-sets-no-nc-black-magnetic-switch-wiring-recessed)

## Best For

- gebildet enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Engineered for over 1 million cycles, ensuring reliable, long-term access control performance.
- • **Stealthy Black Design:** Discreet black casing blends perfectly with doors and windows for invisible security.
- • **Plug & Play Installation:** Pre-wired with 30cm cables and included screws & stickers for effortless, hidden mounting.
- • **Seamless NO/NC Flexibility:** Switch freely between Normally Open or Normally Closed modes to fit any security setup.
- • **Universal Voltage Compatibility:** Operates smoothly across a wide DC range (3V to 48V) for versatile device integration.

## Overview

This 3-set pack of black magnetic NO/NC reed switches offers versatile, durable door and window contact sensors designed for access control and alarm systems. With a compact 29x15x9mm ABS casing, 30cm pre-attached cables, and compatibility with DC voltages from 3V to 48V (max 100V switching), these sensors provide reliable, flexible security solutions. Ideal for professional-grade installations requiring discreet, long-lasting magnetic switches that support both Normally Open and Normally Closed configurations.

## Description

Product specification: Product color: Black Switch type: NO/NC Sensing distance: 10mm-20mm Wire length: 30cm Max Switch Voltage: 100V Max Switch Current: 0.5Amp Max Switch Power: 10W Product size: 29*15*9mm Main material: ABS Service life: 1000000 times

Review: Work perfectly for a low power LED light string to automatically turn on/off via proximity on door. - Work perfectly. I used them in my under the stairs closet. I installed some LED light strings on the ceiling in the closet and installed this switch on the wall, wiring it through a MOSFET power relay. When you open the closet door the lights automatically turn on, and they turn off when you close the door. It seems like the lights are always on because as soon as you open the door its illuminated, but of course that's not the case. I didn't need 10 or 15, so this was the only listing I found that had only a couple for a good price. The magnetic sensors already being wired made installation a breeze.
Review: Works perfectly - Works perfectly. I used glue intead of the double-sided tape tho

## Features

- Package: 3 sets of black magnetic door contact reed switches + 6 pieces stickers + 12 pieces screws.
- Size (approx. ): 29 x 15 x 9 mm; cable length: 30 cm.
- It can control DC 3V, 5V, 9V, 12V, 24V, 36V, 48V, Maximum switching voltage: 100V; Maximum switch current: 0.5 amps, maximum switch power: 10W.
- NC&NO Combined, Use Normally Open or Normally Closed freely. Cable definition: Blue for common; Black for NC; White for NO.
- Application Magnetic door contact reed switch, ideal for door alarm sensors, alarms, LED switches, relays, GPS low voltage devices, etc., effective for theft deterrent. Yes, ideal for wooden doors or windows.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B085XQLQ3N |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #20,128 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Reed Switches #391 in Home Security & Surveillance Systems |
| Brand | Gebildet |
| Color | black NO |
| Compatible Devices | Security System |
| Connector Type | Wire Leads |
| Contact Material | Plastic |
| Contact Type | Normally Open Or Normally Closed |
| Control Method | Remote |
| Control Type | indirect |
| Current Rating | 0.5 Amps |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,045) |
| Date First Available | March 16, 2020 |
| Description Pile | Batteries not included |
| Horsepower | 0.1 Horsepower |
| Item Package Quantity | 1 |
| Item Weight | 1.76 ounces |
| Item dimensions L x W x H | 5.51 x 4.33 x 0.43 inches |
| Item model number | DE453 |
| Manufacturer | Gebildet |
| Mounting Type | Door Mount |
| Number of Items | 1 |
| Number of Positions | 3 |
| Operating Voltage | 100 Volts |
| Operation Mode | NO/NC |
| Part Number | DE453 |
| Power Source | Corded Electric |
| Product Dimensions | 5.51 x 4.33 x 0.43 inches |
| Terminal | Screw |
| UPC | 726972605882 |
| Voltage | 100 Volts |
| Wattage | 10 watts |

## Product Details

- **Brand:** Gebildet
- **Connector Type:** Wire Leads
- **Contact Type:** Normally Open Or Normally Closed
- **Current Rating:** 0.5 Amps
- **Item dimensions L x W x H:** 5.51 x 4.33 x 0.43 inches
- **Material:** wood
- **Operating Voltage:** 100 Volts
- **Operation Mode:** NO/NC
- **Switch Type:** No/Nc
- **Terminal:** Screw

## Images

![Gebildet 3 Sets NO/NC Black Magnetic Switch Wiring Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System - Image 1](https://m.media-amazon.com/images/I/61Bk5lef4AL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Are you certain these switches are normally closed ?  The picture of the light circuit indicates they are normally open, without magnet.**
A: You are correct.  Almost all of the reed switches on Amazon universally have the NO/NC descriptions backwards.  Even the guy who responded to you about his RV steps was mistaken as his application would require a normally closed switch (ie. door opening and removing the magnet would allow the current to flow).  I think the big misunderstanding is these vendors (and some people) think the "normal" position is with a magnet adjacent the reed switch.  It is not.

**Q: What color are these? Pictures suggest black, but description says white.**
A: Mine came in black

**Q: Can this be used in a 12v application? I wanted to use ground to trigger a negative input(car alarm application)**
A: Yes, I am also using it for 12V lights.  You limit is going to be the 0.5amp load.

**Q: Are these waterproof or at least water resistant?**
A: Yes . It is water proof . Just only wires connection  for sensor ( over 10'' long) must be in dry area.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Work perfectly for a low power LED light string to automatically turn on/off via proximity on door.
*by M***L on November 11, 2025*

Work perfectly. I used them in my under the stairs closet. I installed some LED light strings on the ceiling in the closet and installed this switch on the wall, wiring it through a MOSFET power relay. When you open the closet door the lights automatically turn on, and they turn off when you close the door. It seems like the lights are always on because as soon as you open the door its illuminated, but of course that's not the case. I didn't need 10 or 15, so this was the only listing I found that had only a couple for a good price. The magnetic sensors already being wired made installation a breeze.

### ⭐⭐⭐⭐⭐ Works perfectly
*by D***. on February 4, 2026*

Works perfectly. I used glue intead of the double-sided tape tho

### ⭐ Move Along, Move Along.
*by J***. on October 15, 2025*

These little switches caused me so much headache, because they just quit working out of nowhere. The voltage and amperage were well within specs. I bought six because I needed four. I wired them in first by just twisting the wires. They worked. I then soldered and heat-shrunk the connections. They worked. I mounted them to the doors and cabinet, but one of them didn't work. I replaced it, and one of the others quit working after a day. I was convinced for a while that something was faulty with my wiring or mounting. Turns out these are junk.

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-04*