--- product_id: 214667525 title: "2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,DC 3V to 12v Lamp（White）" brand: "takhrwod" price: "74.97 DT" currency: TND in_stock: true reviews_count: 13 category: "Takhrwod" url: https://www.desertcart.tn/products/214667525-2x-magnetic-reed-switch-normally-open-closed-nc-no-door store_origin: TN region: Tunisia --- # 3-12V DC operation Compact 55x12.5x11.5mm size Dual NC/NO magnetic reed switch 2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,DC 3V to 12v Lamp（White） **Brand:** takhrwod **Price:** 74.97 DT **Availability:** ✅ In Stock ## Summary > 🛡️ Elevate your security game with magnetic precision—because your peace of mind deserves the best! ## Quick Answers - **What is this?** 2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,DC 3V to 12v Lamp（White） by takhrwod - **How much does it cost?** 74.97 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/214667525-2x-magnetic-reed-switch-normally-open-closed-nc-no-door) ## Best For - takhrwod enthusiasts ## Why This Product - Trusted takhrwod brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Trigger Range:** Activates within 10-20mm for instant, accurate detection—never miss a breach or entry. - • **Compact & Durable Design:** Sleek white anti-fire ABS casing with a slim profile for discreet, reliable door/window mounting. - • **Dual Mode Magnetic Switching:** Choose Normally Open or Normally Closed configurations to perfectly match your alarm or sensor system needs. - • **Plug & Play Security Upgrade:** Easily integrates with existing wired alarm systems—ideal for wooden doors, windows, gates, and more. - • **Versatile Voltage Compatibility:** Operates seamlessly from 3V up to 12V DC, fitting a wide range of low-voltage security setups. ## Overview This 2-pack Magnetic Reed Switch set by TAKHRWOD offers reliable door and window security with dual Normally Open/Closed modes, operating efficiently between 3V and 12V DC. Crafted from anti-fire ABS material, these compact switches (55x12.5x11.5mm) provide a 10-20mm trigger range and support up to 100V switch voltage with 10W max power. Perfect for enhancing wired alarm systems, they deliver precise, low-voltage theft deterrence for professional-grade home or office security. ## Description Product description MAGNETIC REED SWITCH INSTALLATION INSTRUCTIONS 1:The door and window magnet should be installed at the closed position of the door/window 2:The magnet part is installed on the movable door and window. The switch part is installed on the fixed door and window frame. The switch part and the magnet part should be aligned as much as possible. 3:The door magnet should be away from the strong magnetic field interference source such as a transformer. Otherwise, the working characteristics of the door magnet will be changed and possible wrong actions. 4:Magnetic Contact sensors can be added to an existing wired Alarm Systems. 5:They are ideal for protecting doors, windows and patio doors and any opening device such as a drawer or cupboard for example.In the event of no contact the alarm will be activated immediately.Magnetic Contacts are perfect for use in situations where it is not suitable to fit PIR sensors, for example where there are pets or animals. 6：Recommendations in application: wooden door, window, metal doors, gates and any other compatible application. N.C. / N.O. DEFINITION N.C. means Normally Closed: When the magnet together, the circuit is conductive( light on ); When the magnet separates, the circuit is not conductive ( light off ); N.O. means Normally Open: When the magnet separates, the circuit is conductive( light on ); When the magnet together, the circuit is not conductive ( light off ). Please check the right need carefully before purchasing it! PRECAUTIONS 1:It can only provide a switch signal to the device, which cannot directly load the power, nor directly connect the lamp! 2:The door magnet should be away from the strong magnetic field interference source such as a transformer. Otherwise, the working characteristics of the door magnet will be TECHNICAL SPECIFICATIONS Review: Half worked - Only one of the two worked. One was shipped broken. Review: Great switch - Used to create wired switch for garage door - I purchased this to make my own wired open/close detector for my garage door opener. The ability to use this both as a Normally Open or Normally Closed switch is great because I wasn't sure what mode I needed to have for my plan to work. So far it has worked flawlessly for me. ## Features - ➤【Reed Switch】:Great for alarm,LED,Relay,GPS low voltage devices...etc.,Great for pick-ups with sliding rear window.Effective for Theft Deterrence. - ➤【Maximum Switch Voltage】: 100V;Contact Capacity: 500(mA) (Maximum Switch Current);Rated Power: 10W(Maximum Switch Power); Contact Type: NC/NO/COM,Trigger Range: 10-20mm;This switch cannot exceed the DC12v power supply - ➤【Product Name】: Magnetic Door Swith; Color: white; Material: Anti-fire ABS material.;Net Weight: 42g. - ➤【Safety Protection】: 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086GYGCJ8 | | Actuator Type | Proximity | | Best Sellers Rank | #50,004 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Reed Switches | | Brand | TAKHRWOD | | Brand Name | TAKHRWOD | | Circuit Type | 1-way | | Color | white | | Connectivity Protocol | X-10 | | Connector Type | Screws | | Contact Material | Plastic | | Contact Type | Normally Open, Normally Closed | | Control Method | App | | Control Type | manual | | Current Rating | 5 Milliamps | | Customer Reviews | 4.3 out of 5 stars 740 Reviews | | International Protection Rating | IP65 | | Item Dimensions | 2.17 x 0.59 x 0.59 inches | | Manufacturer | TAKHRWOD | | Material Type | Metal | | Model | B3 | | Mounting Type | Door Mount | | Number of Items | 2 | | Number of Positions | 2 | | Operating Voltage | 3 Volts | | Operation Mode | ON-OFF | | Part Number | B3 | | Switch Type | Reed Switch | | Terminal | Screw | | UPC | 779172986619 | | Unit Count | 2 Count | | Wattage | 10 watts | ## Product Details - **Brand:** TAKHRWOD - **Connector Type:** Screws - **Contact Type:** Normally Open, Normally Closed - **Current Rating:** 5 Milliamps - **Item dimensions L x W x H:** 2.17 x 0.59 x 0.59 inches - **Material:** Metal - **Operating Voltage:** 3 Volts - **Operation Mode:** ON-OFF - **Switch Type:** Reed Switch - **Terminal:** Screw ## Images ![2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,DC 3V to 12v Lamp（White） - Image 1](https://m.media-amazon.com/images/I/419Lsxx4rhL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Half worked *by T***M on June 3, 2023* Only one of the two worked. One was shipped broken. ### ⭐⭐⭐⭐⭐ Great switch - Used to create wired switch for garage door *by M***T on July 21, 2023* I purchased this to make my own wired open/close detector for my garage door opener. The ability to use this both as a Normally Open or Normally Closed switch is great because I wasn't sure what mode I needed to have for my plan to work. So far it has worked flawlessly for me. ### ⭐⭐⭐⭐ It will not melt if you use it right. *by K***Y on January 1, 2024* I found this magnetic switch and it was more-or-less perfect for my application, but I couldn't help but notice all of the reviews of melted units. On further inspection you'll notice that many of these reviews detail misuse of the product by passing far too much current through it, for example to a lightbulb. This item uses a lightbulb as an example but explicitly says it should run to some sort of panel. This is a switch meant for powering a relay that can actually handle the current of your application. This is a switch for a signal, not for power. This will work great for something like an Arduino, but it will not for powering truck lights. Be warned that this is totally a Chinese wholesale product and you probably cannot pass through as much current as it says, but using it modestly will yield the intended result. Realistically you should not pass through 0.5A. You don't need much for a signal. ## Frequently Bought Together - 2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,DC 3V to 12v Lamp（White） - Electromagnetic Power Relay, 8-Pin 10 AMP 12V DC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ [Applicable for DIN Rail System] - TWTADE/JTX-2C, MK2P-I DPDT Power Relay with Plug-in Terminal Socket Base, AC 110V Coil, 8 Pin 2NO 2NC AC 110V --- ## 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.tn/products/214667525-2x-magnetic-reed-switch-normally-open-closed-nc-no-door](https://www.desertcart.tn/products/214667525-2x-magnetic-reed-switch-normally-open-closed-nc-no-door) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-21*