--- product_id: 48720039 title: "Door Alarm Sensor, 120dB Window Alarms for Home Security, Ultra-Slim Wireless Magnetic Sensor Burglar Alarm with Batteries included for House, Flat, Shop, Office & Garage, 2 Pack" brand: "noopel" price: "€ 33.46" currency: EUR in_stock: true category: "Noopel" url: https://www.desertcart.sk/products/48720039-door-alarm-sensor-120db-window-alarms-for-home-security-ultra store_origin: SK region: Slovakia --- # Ultra-slim 38x10x74mm design 120dB piercing alarm 3x LR44 batteries included Door Alarm Sensor, 120dB Window Alarms for Home Security, Ultra-Slim Wireless Magnetic Sensor Burglar Alarm with Batteries included for House, Flat, Shop, Office & Garage, 2 Pack **Brand:** noopel **Price:** € 33.46 **Availability:** ✅ In Stock ## Summary > 🚪🔔 Don’t just lock it—alarm it! Stay one step ahead with Noopel’s ultra-loud door sensor. ## Quick Answers - **What is this?** Door Alarm Sensor, 120dB Window Alarms for Home Security, Ultra-Slim Wireless Magnetic Sensor Burglar Alarm with Batteries included for House, Flat, Shop, Office & Garage, 2 Pack by noopel - **How much does it cost?** € 33.46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/48720039-door-alarm-sensor-120db-window-alarms-for-home-security-ultra) ## Best For - noopel enthusiasts ## Why This Product - Trusted noopel brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** No wiring or screws—just peel & stick with premium adhesive for instant protection. - • **Sleek & Discreet:** Ultra-slim magnetic sensor fits seamlessly on doors and windows without ruining your décor. - • **Smart Battery Life:** Includes batteries plus low battery indicator so you’re never caught off guard. - • **Versatile Security:** Perfect for homes, offices, garages, and shops—protect every entry point with ease. - • **Instant Intruder Alert:** 120dB alarm blasts loud enough to stop any unwanted entry in its tracks. ## Overview The Noopel Door Alarm Sensor delivers a powerful 120dB alert through an ultra-slim wireless magnetic sensor, designed for quick, easy installation with no wiring or screws. Powered by included LR44 batteries and featuring a low battery indicator, it’s ideal for securing doors, windows, cabinets, and more across homes, offices, and garages. Its compact design and adjustable settings make it a cost-effective, high-impact security upgrade that deters intruders and keeps your loved ones safe. ## Description Product description Noopel Window and Door entry Alarm provides a simple-to-use, cost-effective security solution to protect you and your family against home invasions thanks to the 120-decibel alarms, loud enough to make a would-be intruder think twice about entering through your doors or windows. Also Perfect for preventing your children from opening doors they shouldn’t. There is no need for expensive alarm systems, our high quality alarm adapts to different environments. It is perfect for windows, doors, office, balconies, stairs and more. You can even use it to keep a sleepwalker inside and prevent any accidents. To protect your loved ones, security is one of the best gifts so buy one for every door and window today and show them you care. Safety Warning Not suitable for children under 3 years. For use under adult supervision. ## Features - The door alarm emits a 120 dB sound, and the LED light activates when a door or window is opened more than 1 cm. This Noopel alarm system for home security is designed to quickly deter intruders and alert residents. - Prevent children going out the house without notice.Also ideal entry warning for your home, office, apartment, garage and so on. - Ultra-thin door and window alarm with 2 adjustable settings (off/on).3xLR44 batteries included. - Easy installation, No wiring needed! No screws needed! Just affix the provided stickers to various parts of the house, such as doors, windows, cabinets, drawers and gates. (Note: Keep the installation area clean and ensure that the sensor is installed within 1 cm from the arrow side of the burglar alarm.) - Ultra-sensitive also Low battery indicator to check battery life.This is a PERFECT AFFORDABLE compliment for your home security. Prior to purchase, please verify that the door or window frame provides sufficient space to accommodate the magnetic sensor, with a minimum width of 0.5 inches. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B073XBCNYS | | Battery Description | battery_type_LR44 | | Best Sellers Rank | 5,838 in DIY & Tools ( See Top 100 in DIY & Tools ) 5 in Home Security Door & Window Sensors | | Brand | Noopel | | Colour | Silver | | Compatible Devices | Home Security System | | Control Method | Touch | | Country of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (2,027) | | Item Dimensions L x W x H | 38L x 10W x 74H millimetres | | Item Weight | 32 Grams | | Manufacturer | Noopel | | Model Name | MCJBQ820 | | Model Number | MCJBQ820 | | Mounting Type | Adhesive Mount | | Number of Items | 2 | | Number of Packs | 2 | | Part Number | RK-KDS3-FBMM | | Power source | Battery Powered | | Sensor Technology | Contact Sensor | | Sound Level | 120 Decibels | | UPC | 765629470862 | | Unit Count | 2.0 count | ## Product Details - **Brand:** Noopel - **Colour:** Silver - **Compatible devices:** Home Security System - **Power source:** Battery Powered - **Product dimensions:** 38L x 10W x 74H millimetres ## Images ![Door Alarm Sensor, 120dB Window Alarms for Home Security, Ultra-Slim Wireless Magnetic Sensor Burglar Alarm with Batteries included for House, Flat, Shop, Office & Garage, 2 Pack - Image 1](https://m.media-amazon.com/images/I/71PEFuDXvhL.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Questions & Answers **Q: Does it work with sliding doors?** A: I would say yes - the sensor and magnetic contact are separate - when sticking on try without removing the adhesive backing on either the magnet or sensor to get the correct position - when you have mark lightly with a pencil and then apply - mine work great and still give me a shock (with the noise) when i forget to flick the switch off. Hope it works well for you **Q: When i installed the alarm on my door, i switched it on and it is continously making the alarm sound?? What do i do to stop it?** A: Hi Ashley, possible because the gap between the alarm and little strip is larger than 10mm. if so, the only way to stop it is to switch off. **Q: Do both sections have to be at the same level as my door has a trim/lip which is 1.5cm higher** A: They have to be level and in line I glued a piece of wood on frame to line up works great **Q: Battery life since august 21 I have changed the batteries 3 times .The alarm has never been triggered, except when installed** A: I can only say that my alarms are all working OK and the batteries i have never changed since arriving about 4 months ago. Do you check they are working on a weekly period. If you have a spare 1 then leave set up in your home side by side. And check to see what's going on... ## Frequently Bought Together - Door Window Alarm 2 Pack Noopel Home Security Ultra-Slim Wireless Magnetic Sensor Burglar Anti-theft 120DB Alarm with Batteries included - DIY EASY to Install - Defender Ultra Slim Vibration Alarm 2 Pack - Window Alert Alarm Sensor Smash Glass Siren 130dB - Police Accredited - Window Alarm 5 Pack, 125DB Loud Glass Break Sensors, Detects Glassbreak & Vibration, with Adjustable Sensitivity, Fit for Any Window for Indoor Home Office Security --- ## 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.sk/products/48720039-door-alarm-sensor-120db-window-alarms-for-home-security-ultra](https://www.desertcart.sk/products/48720039-door-alarm-sensor-120db-window-alarms-for-home-security-ultra) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-11-13*