--- product_id: 75259895 title: "10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security with Lead Wire and 3M Adhesive Paper" brand: "gufastore" price: "S/.155" currency: PEN in_stock: true reviews_count: 13 category: "Gufastore" url: https://www.desertcart.pe/products/75259895-10pcs-surface-mount-alarm-10w-100v-0-5a-in-max store_origin: PE region: Peru --- # No external power needed Reliable reed switch magnetic contact Easy 3M adhesive surface mount 10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security with Lead Wire and 3M Adhesive Paper **Brand:** gufastore **Price:** S/.155 **Availability:** ✅ In Stock ## Summary > 🔐 Elevate your home security game with smart simplicity! ## Quick Answers - **What is this?** 10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security with Lead Wire and 3M Adhesive Paper by gufastore - **How much does it cost?** S/.155 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/75259895-10pcs-surface-mount-alarm-10w-100v-0-5a-in-max) ## Best For - gufastore enthusiasts ## Why This Product - Trusted gufastore brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power-Free Precision:** Operates without external power, ensuring zero battery hassles and stable signals. - • **Seamless Integration:** Connects effortlessly to your existing alarm system for instant security. - • **Sleek & Discreet Design:** Clean white ABS finish blends perfectly with modern home aesthetics. - • **Magnetic Reed Switch Tech:** Detects door/window status with ultra-reliable magnetic contact sensors. - • **Quick & Damage-Free Installation:** 3M adhesive backing lets you mount alarms in minutes without drilling. ## Overview The Gufastore 10pcs Surface Mount Alarm set features 10W, 100V, 0.5A max magnetic reed switch sensors designed for door and window security. With no external power required, these white ABS magnetic contacts connect directly to wired alarm panels, offering stable, battery-free operation. Easy to install using included 3M adhesive, they provide reliable, discreet protection with a recommended mounting gap of 15-25mm. ## Description Gufastore 10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security with Lead Wire and 3M Adhesive Paper Review: This Product Works Great! - One of my window security alarm sensors got damaged, so I browsed on-line and decided to go with this brand. The product arrived two days after I placed my order. It was easy to install. It took me about ten minutes. It could have taken me less time if the sensors were little bit narrower. The product came in ten pieces, and I only needed one, so I have nine pieces left. It's been a week since I replaced my damaged sensor with new one, and it seems to work properly. I would recommend this product. Review: Alarm parts - Perfect match for my system ## Features - Gufastore 10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security with Lead Wire and 3M Adhesive Paper - 【Reed Switch】When the contact magnetic is near, the switch is close , current will run through it ; When the contact magnet is away , the switch is open ,no current could run through . - 【No External Power Needed】 Connect to wired alarm control panel, GND (Positive) Connect with NC(Negative) ports directly which make signal stability and no trouble for the battery. - 【Install Distance】 ：Gap between 2 pieces more than 15mm, less than 25mm.White color make home great and beautiful. Anti-fire ABS material. - 【Install Attention】The Magnetic contact CAN NOT connect directly to power, it works with your alarm system,Working current under 12V. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07F314V3Z | | Battery Description | Battery | | Best Sellers Rank | #1,127 in Home Security Systems | | Brand | gufastore | | Color | white | | Control Method | App, Touch | | Customer Reviews | 4.4 4.4 out of 5 stars (366) | | Item Weight | 4 ounces | | Manufacturer | Gufastore | | Mounting Type | Wall Mount | | Power Source | Battery Powered | | Sensor Technology | Contact Sensor | | UPC | 706973691053 | | Voltage | 100 Volts | ## Product Details - **Battery Description:** Battery - **Brand:** gufastore - **Color:** white - **Power Source:** Battery Powered - **Voltage:** 100 Volts ## Images ![10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security with Lead Wire and 3M Adhesive Paper - Image 1](https://m.media-amazon.com/images/I/61AY7OU9GzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ This Product Works Great! *by R***E on October 14, 2020* One of my window security alarm sensors got damaged, so I browsed on-line and decided to go with this brand. The product arrived two days after I placed my order. It was easy to install. It took me about ten minutes. It could have taken me less time if the sensors were little bit narrower. The product came in ten pieces, and I only needed one, so I have nine pieces left. It's been a week since I replaced my damaged sensor with new one, and it seems to work properly. I would recommend this product. ### ⭐⭐⭐⭐⭐ Alarm parts *by A***S on February 8, 2026* Perfect match for my system ### ⭐⭐⭐⭐⭐ Security system back up and running *by J***L on April 23, 2021* Quick delivery, little beefier than my old sensors. Liked the leads that can give you a little more working room on a retrofit. Comes with both screws and good quality 3m foam tape to adhere. Replaced some old beat up sensors, now all zones working. ## Frequently Bought Together - Gufastore 10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security with Lead Wire and 3M Adhesive Paper - 100pcs White Dry B-Connector Wire Telephone Alarm Wire Crimp Beanies Splices for Low Voltage - Innfact Low Voltage B Connectors Wire Splices Gel Filled, Waterproof Electrical Wire Crimp Bean Type Cable Connector for Outdoor Telephone Phone Security Lighting (Blue 100 pcs) --- ## 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.pe/products/75259895-10pcs-surface-mount-alarm-10w-100v-0-5a-in-max](https://www.desertcart.pe/products/75259895-10pcs-surface-mount-alarm-10w-100v-0-5a-in-max) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-04-22*