---
product_id: 387491319
title: "Gebildet 3 x Magnetic Door Sensors, Black, Security Door Window Magnetic Contact Switch, Reed Magnetic Switch, Normally Open"
brand: "gebildet"
price: "€ 31.54"
currency: EUR
in_stock: true
reviews_count: 5
category: "Gebildet"
url: https://www.desertcart.ie/products/387491319-gebildet-3-x-magnetic-door-sensors-black-security-door-window
store_origin: IE
region: Ireland
---

# 0.5A current, 100V voltage 10-15mm detection range 1,000,000+ activation lifespan Gebildet 3 x Magnetic Door Sensors, Black, Security Door Window Magnetic Contact Switch, Reed Magnetic Switch, Normally Open

**Brand:** gebildet
**Price:** € 31.54
**Availability:** ✅ In Stock

## Summary

> 🔒 Elevate your security game with sensors that never miss a beat!

## Quick Answers

- **What is this?** Gebildet 3 x Magnetic Door Sensors, Black, Security Door Window Magnetic Contact Switch, Reed Magnetic Switch, Normally Open by gebildet
- **How much does it cost?** € 31.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/387491319-gebildet-3-x-magnetic-door-sensors-black-security-door-window)

## 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

- • **Power Smart:** Operates efficiently at 0.5A and up to 100V for versatile setups
- • **Built to Last:** Endures over 1 million activations—security that never quits
- • **Sleek & Discreet:** Compact 29x15.5x9mm black design blends seamlessly with modern interiors
- • **Precision Detection:** Reliable 10-15mm sensing distance for flawless security triggers
- • **Complete Installation Kit:** Includes screws and stickers for quick, hassle-free mounting

## Overview

The Gebildet Magnetic Door Sensor is a compact, high-performance reed switch designed for home and business security. Featuring a precise 10-15mm detection range, a robust lifespan exceeding 1 million activations, and efficient operation at 0.5A/100V, it ensures reliable monitoring of doors and windows. Its sleek black ABS casing and included mounting accessories make installation seamless, delivering professional-grade protection with minimal fuss.

## Description

Product Package 3 x magnetic door sensors. 12 x screws. 6 x stickers. Recessed Security Window Door Contact Sensor with Alarm Wire, Magnetic Switch, Magnetic Door Sensor, Magnetic Switch Normally Open Product name: magnetic door sensor switch Product colour: black. Product size: 29 x 15.5 x 9 mm. Main Material: ABS Detection distance: 10mm-15mm Wire length: 33 cm Working current: 0.5A. Working voltage: 100 V (1-100 V). Maximum power: 10W Lifespan: 1000000 times

Review: Good service! - One was broken and another one had a huge sensing delay… Although there was a problem the item could be returned without any issues even with a peace of wire stripped off to test them… Product was below average for my use case, but the way it was handled afterwards was easy and costumer friendly! 5 stars for service, Making an average of 4 stars in total!
Review: Sensibile perfetto - Ottimo e sensibile

## Features

- Product Name: Magnetic Door Sensor.
- Detection distance: 10mm-15mm.
- Product size: 29 x 15.5 x 9 mm. Wire length: 33 cm.
- Detection distance: 10mm-15mm Lifetime: 1000000 times.
- Working current: 0.5A/Working voltage: 100V (1-100V)/Maximum power: 10W.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B085XQLQ3N |
| Best Sellers Rank | #54,444 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Garage Door Sensors |
| Brand | Gebildet |
| Brand Name | Gebildet |
| Circuit Type | 1-way |
| Color | Black No |
| Connector Type | Wire leads |
| Connector type | Wire leads |
| Contact Material | Plastic |
| Contact Type | Normally Open |
| Contact type | Normally Open |
| Control Method | Sensor |
| Current Rating | 0.5 Amps |
| Current rating | 0.5 Amps |
| Customer Reviews | 4.2 out of 5 stars 1,527 Reviews |
| Item Dimensions | 14 x 11 x 1.1 centimeters |
| Item Weight | 0.05 Kilograms |
| Item height | 1.1 centimeters |
| Manufacturer | Gebildet |
| Material Type | wood |
| Model | DE453 |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 100 Volts (AC) |
| Operating voltage | 100 Volts (AC) |
| Operation Mode | ON-OFF |
| Operation mode | ON-OFF |
| Switch Type | Reed Magnetic Switch, Normally Open |
| Terminal | Screw |
| UPC | 726972605882 |
| Wattage | 10 watts |

## Product Details

- **Operation mode:** ON-OFF
- **Current rating:** 0.5 Amps
- **Operating voltage:** 100 Volts (AC)
- **Contact type:** Normally Open
- **Connector type:** Wire leads

## Images

![Gebildet 3 x Magnetic Door Sensors, Black, Security Door Window Magnetic Contact Switch, Reed Magnetic Switch, Normally Open - Image 1](https://m.media-amazon.com/images/I/61Bk5lef4AL.jpg)

## 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

### ⭐⭐⭐⭐ Good service!
*by J***I on 9 November 2024*

One was broken and another one had a huge sensing delay… Although there was a problem the item could be returned without any issues even with a peace of wire stripped off to test them… Product was below average for my use case, but the way it was handled afterwards was easy and costumer friendly! 5 stars for service, Making an average of 4 stars in total!

### ⭐⭐⭐⭐⭐ Sensibile perfetto
*by C***N on 23 July 2025*

Ottimo e sensibile

### ⭐⭐⭐⭐⭐ Ok
*by R***A on 8 December 2025*

Rapido

## Frequently Bought Together

- Gebildet 3 Sets NO/NC Black Magnetic Switch Wiring Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System
- Nilight - TR-05 2PCS 60 Inch 180 LEDs Bed Strip Kit with Waterproof on/Off Switch Blade Fuse 2-Way Splitter Extension Cable for Cargo, Pickup Truck, SUV, RV, Boat , 2 Years Warranty

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-07*