--- product_id: 235404839 title: "Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch Black, Magnetic Door Sensor, Normally Closed Magnetic Switch" brand: "gebildet" price: "93 zł" currency: PLN in_stock: true reviews_count: 8 category: "Gebildet" url: https://www.desertcart.pl/products/235404839-gebildet-5pcs-recessed-wired-security-window-gate-contact-sensor-alarm store_origin: PL region: Poland --- # 10-15mm sensing range 1,000,000+ cycles lifespan 0.5A current, 100V voltage Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch Black, Magnetic Door Sensor, Normally Closed Magnetic Switch **Brand:** gebildet **Price:** 93 zł **Availability:** ✅ In Stock ## Summary > 🔒 Stay ahead of threats with precision you can trust! ## Quick Answers - **What is this?** Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch Black, Magnetic Door Sensor, Normally Closed Magnetic Switch by gebildet - **How much does it cost?** 93 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/235404839-gebildet-5pcs-recessed-wired-security-window-gate-contact-sensor-alarm) ## 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 - • **Compact & Discreet:** Sleek black ABS casing (29x15.5x9mm) blends effortlessly with modern interiors. - • **Ultra-Durable Design:** Engineered for over 1 million activations, ensuring long-term peace of mind. - • **Precision Sensing Range:** Detects door/window status within a 10-15mm gap for reliable security triggers. - • **Versatile Compatibility:** Normally closed magnetic reed switch works flawlessly with most alarm systems. - • **Plug & Play Installation:** Includes 33cm wired leads and mounting accessories for seamless setup. ## Overview The Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm features a compact black ABS design with a 10-15mm sensing distance, supporting up to 1 million cycles. Operating at 0.5A and 100V max, it offers reliable, normally closed magnetic reed switch functionality, perfect for enhancing home or business security systems with easy installation and durable performance. ## Description Product Name: Door Magnetic Sensor Switch Product color: black Product size: 29*15.5*9mm Main material: ABS Sensing distance: 10mm-15mm Wire length: 33cm Working current: 0.5A Working voltage: 100V (1-100V) Maximum power: 10W Service life: 1000000 times Product package Door Magnetic Sensor Switch*5 Screw*20 Sticker*10 Review: Reed Switch Kit Provides Good Value - These switches are in the closed position when the magnet is close and opens when the magnet is about 3/4" away. All five switches worked perfectly and the included double-sided tape made installation easy. Review: Works perfectly and attached to my existing alarm without issue. - Worked perfectly! I have a security system with door/window open alarms. One of the sensors got damaged and these spliced right onto the alarm unit meaning I don't have to replace the entire alarm. I only needed to replace the damaged sensor end. Saved me a bundle. ## Features - Product Name: Door Magnetic Sensor Switch - Sensing distance: 10mm-15mm - Product size: 29*15.5*9mm Wire length: 33cm - Sensing distance: 10mm-15mm Service life: 1000000 times - Working current: 0.5A/Working voltage: 100V (1-100V)/Maximum power: 10W ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07YFBG27Y | | Best Sellers Rank | #5,918 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Reed Switches | | Brand Name | Gebildet | | Circuit Type | 1-way | | Color | Black-NC | | Connector Type | Screw | | Contact Material | Plastic | | Contact Type | Normally Closed | | Control Method | Sensor | | Current Rating | 0.5 Amps | | Customer Reviews | 4.3 4.3 out of 5 stars (103) | | Item Weight | 0.07 Kilograms | | Manufacturer | Gebildet | | Material Type | Acrylonitrile Butadiene Styrene | | Model | E332 | | Mounting Type | Door Mount | | Number of Positions | 1 | | Operation Mode | ON-NONE-OFF | | Switch Type | Reed Switch | | Terminal | Screw | | UPC | 781621382491 | | Unit Count | 1 Count | | Wattage | 10 watts | ## Product Details - **Brand:** Gebildet - **Circuit Type:** 1-way - **Connector Type:** Screw - **Contact Type:** Normally Closed - **Current Rating:** 0.5 Amps - **Material:** Acrylonitrile Butadiene Styrene - **Mounting Type:** Door Mount - **Operation Mode:** ON-NONE-OFF - **Switch Type:** Reed Switch - **Terminal:** Screw ## Images ![Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch Black, Magnetic Door Sensor, Normally Closed Magnetic Switch - Image 1](https://m.media-amazon.com/images/I/71csUmCakjL.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 ### ⭐⭐⭐⭐⭐ Reed Switch Kit Provides Good Value *by G***Y on November 28, 2025* These switches are in the closed position when the magnet is close and opens when the magnet is about 3/4" away. All five switches worked perfectly and the included double-sided tape made installation easy. ### ⭐⭐⭐⭐⭐ Works perfectly and attached to my existing alarm without issue. *by G***N on November 21, 2025* Worked perfectly! I have a security system with door/window open alarms. One of the sensors got damaged and these spliced right onto the alarm unit meaning I don't have to replace the entire alarm. I only needed to replace the damaged sensor end. Saved me a bundle. ### ⭐⭐⭐⭐⭐ They are normally closed *by J***N on June 11, 2025* I didn't notice they are normally closed, just had to change my code to work correctly. ## Frequently Bought Together - Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch Black, Magnetic Door Sensor, Normally Closed Magnetic Switch - Sensaphone Web600 Web-Monitor Alarm, No Land Line Needed - 14AWG Speaker Wire, GearIT Pro Series 14 AWG Gauge Speaker Wire Cable (100 Feet / 30.48 Meters) Great Use for Home Theater Speakers and Car Speakers Black --- ## 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.pl/products/235404839-gebildet-5pcs-recessed-wired-security-window-gate-contact-sensor-alarm](https://www.desertcart.pl/products/235404839-gebildet-5pcs-recessed-wired-security-window-gate-contact-sensor-alarm) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-22*