--- product_id: 610920857 title: "Defender Ultra Slim Window Alarm 2 Pack, 130dB Vibration Sensor, Glass Break & Window Smash Detection, Loud Security Siren, Police Accredited, Gold Sold Secure" brand: "defender" price: "NT$1461" currency: TWD in_stock: true reviews_count: 10 category: "Defender" url: https://www.desertcart.tw/products/610920857-defender-ultra-slim-window-alarm-2-pack-130db-vibration-sensor store_origin: TW region: Taiwan --- # 6 included LR44 alkaline batteries Ultra-slim 6.2cm profile 130dB ultra-loud siren Defender Ultra Slim Window Alarm 2 Pack, 130dB Vibration Sensor, Glass Break & Window Smash Detection, Loud Security Siren, Police Accredited, Gold Sold Secure **Brand:** defender **Price:** NT$1461 **Availability:** ✅ In Stock ## Summary > 🚨 Slim, loud, and police-approved—security that fits your lifestyle ## Quick Answers - **What is this?** Defender Ultra Slim Window Alarm 2 Pack, 130dB Vibration Sensor, Glass Break & Window Smash Detection, Loud Security Siren, Police Accredited, Gold Sold Secure by defender - **How much does it cost?** NT$1461 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/610920857-defender-ultra-slim-window-alarm-2-pack-130db-vibration-sensor) ## Best For - defender enthusiasts ## Why This Product - Trusted defender brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Peel-and-stick adhesive pads make installation a breeze—no tools needed - • **Dual Deterrent Power:** Visual warning sticker plus shock sensor alarm keeps intruders guessing - • **Instant Intruder Alert:** 130dB siren blasts at first vibration to stop threats cold - • **Sleek & Discreet Design:** Ultra-slim profile fits seamlessly on any window or door frame - • **Certified Security Assurance:** Police-accredited with Secured by Design & Sold Secure badges for trusted protection ## Overview The Defender Ultra Slim Vibration Alarm 2 Pack offers a cutting-edge 130dB shock sensor alarm designed for windows and doors. With an ultra-slim 6.2cm design, easy peel-and-stick installation, and included batteries, it delivers instant alerts on impact. Police-accredited for quality and reliability, it combines visual and audible deterrents to protect homes, businesses, and more. ## Description Product Description Defender Ultra Slim Vibration Alarm - 2 Pack What's in the box 2 x Slim Vibration Alarms 2 x Self-Adhesive Pads / Warning Stickers 6 x LR44 Batteries 1 x Instruction Sheet Modern Intruder Alarm for Windows & Doors The Defender Window Vibration Alarm is an impressive intruder alarm that will activate when a forced entry occurs. A sensitive shock/motion sensor ensures that the powerful 130dB siren is triggered if a potential intruder attempts to hit or smash the window. This device features a simple ON/OFF switch to activate/deactivate the alarm. Once activated, the alarm will sound continuously for 30 seconds and then stop. Any additional vibration will trigger the alarm again and repeat the cycle. Loud 130dB Siren Glass Door & Window Alarm Quick & Easy Installation Visual Deterrent Indoor Use Only Dimensions: 6.2 x 5.1 x 1cm Sold Secure & Secured by Design Accreditations EASY INSTALLATION • This impressive intruder alarm includes a self-adhesive pad for easy installation. • Stick on in your desired location and then choose your sensitivity option. BATTERY POWERED • No unsightly wires, hidden subscription costs or Wi-Fi needed! • Comes accompanied with 6 x LR44 batteries. • Remove the battery tab before use. POWERFUL SIREN • Loud and highly effective 130dB siren to deter thieves. • Alarm can be turned on/off when a door or window is in use. Boost your home security! Keep unwanted visitors away from your property and valuables. The adhesive fixture also doubles as a warning sticker, for an additional visual deterrent. The Defender Ultra Slim Vibration Alarm is the first of its type to achieve the Sold Secure Gold standard. Also achieving the coveted title of Police Accredited via the Secured by Design initiative. Typical Uses Windows, Doors or Sliding Doors Home, Office or Businesses Garage, Shed or Workshop Static Caravan / Lodge Summerhouse / Mancave Outbuildings: Protect Bikes, Tools, Sports Equipment Display Cabinets: Home, Shops, Museums, Exhibitions, Trade Fairs Review: I love it. - I only got it today and stuck them on the bottom right of the downstairs window glass and gave it a few knocks and boom, the alarms went off. Imagine how quickly it would go if a hard object were to hit the glass! So far, so good. And I like how it has the warning sticker to alert intruders. Great product and easy to use, not to mention the slim design and great adhesive. Not expensive and well packaged. Sensitivity is great as the goal is to be alerted for break in or broken glass, not tapping on the glass. Review: Unpack & fit as required - Purchased for front/ back door alarm protection after attempted kicking/ break in whilst asleep at night. Excellent value, quality, noise level, functionality & easy to install, much smaller than I was expecting, which gives the user a wide variety of fixing areas, plus this product is Police approved! ## Features - DEFENDER ULTRA SLIM WINDOW ALARM - A slim, modern shock sensor alarm designed for windows and doors. - LOUD 130DB SIREN - A sensitive shock/motion sensor ensures that the powerful 130dB siren is triggered if a potential intruder attempts to hit or smash the window. - EASY INSTALLATION - Comes with two adhesive pads for quick installation, which doubles as a warning sticker, for an additional visual deterrent. - INTRUDER ALARM - Ideal burglar deterrent for homes, businesses, caravans, sheds and many more. Suitable for all types of glass windows or door panels. - POLICE RECOGNISED STANDARDS - The first of its type to achieve the coveted Secured by Design & Sold Secure accreditations, which ensures high quality and reliability. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CVNJZX84 | | Battery Description | Alkaline | | Battery description | Alkaline | | Best Sellers Rank | 35,950 in DIY & Tools ( See Top 100 in DIY & Tools ) 49 in Home Security Door & Window Sensors | | Brand | Defender | | Colour | Black/Silver | | Compatible Devices | Home Security System | | Compatible devices | Home Security System | | Control Method | Touch | | Country of Origin | China | | Customer Reviews | 4.1 out of 5 stars 181 Reviews | | Included Components | Adhesive Warning Sticker & Batteries | | Item Dimensions L x W x H | 10L x 51W x 62H millimetres | | Item Type Name | Window Alert Alarm | | Manufacturer | Solon Security | | Model Number | EL00231 | | Mounting Type | Window Mount | | Number of Batteries | 6 LR44 batteries required. (included) | | Part Number | EL00231 | | Power source | Battery Powered | | Product dimensions | 10L x 51W x 62H millimetres | | Sensor Technology | Vibration Sensor | | Sound Level | 130 Decibels | | Voltage | 9 Volts (DC) | ## Product Details - **Colour:** Black/Silver - **Brand:** Defender - **Power source:** Battery Powered - **Compatible devices:** Home Security System - **Product dimensions:** 10L x 51W x 62H millimetres ## Images ![Defender Ultra Slim Window Alarm 2 Pack, 130dB Vibration Sensor, Glass Break & Window Smash Detection, Loud Security Siren, Police Accredited, Gold Sold Secure - Image 1](https://m.media-amazon.com/images/I/61-Z17tP6NL.jpg) ![Defender Ultra Slim Window Alarm 2 Pack, 130dB Vibration Sensor, Glass Break & Window Smash Detection, Loud Security Siren, Police Accredited, Gold Sold Secure - Image 2](https://m.media-amazon.com/images/I/51vshD08pXL.jpg) ![Defender Ultra Slim Window Alarm 2 Pack, 130dB Vibration Sensor, Glass Break & Window Smash Detection, Loud Security Siren, Police Accredited, Gold Sold Secure - Image 3](https://m.media-amazon.com/images/I/51VM+TCHujL.jpg) ![Defender Ultra Slim Window Alarm 2 Pack, 130dB Vibration Sensor, Glass Break & Window Smash Detection, Loud Security Siren, Police Accredited, Gold Sold Secure - Image 4](https://m.media-amazon.com/images/I/51NeJCmKCVL.jpg) ![Defender Ultra Slim Window Alarm 2 Pack, 130dB Vibration Sensor, Glass Break & Window Smash Detection, Loud Security Siren, Police Accredited, Gold Sold Secure - Image 5](https://m.media-amazon.com/images/I/51eglWAm5RL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ I love it. *by A***R on 1 May 2026* I only got it today and stuck them on the bottom right of the downstairs window glass and gave it a few knocks and boom, the alarms went off. Imagine how quickly it would go if a hard object were to hit the glass! So far, so good. And I like how it has the warning sticker to alert intruders. Great product and easy to use, not to mention the slim design and great adhesive. Not expensive and well packaged. Sensitivity is great as the goal is to be alerted for break in or broken glass, not tapping on the glass. ### ⭐⭐⭐⭐⭐ Unpack & fit as required *by A***S on 18 January 2025* Purchased for front/ back door alarm protection after attempted kicking/ break in whilst asleep at night. Excellent value, quality, noise level, functionality & easy to install, much smaller than I was expecting, which gives the user a wide variety of fixing areas, plus this product is Police approved! ### ⭐⭐⭐⭐ Random alarms *by M***B on 16 May 2024* Loud, slimline, easy to turn on and off. However, both can go off randomly, which is a shock of it happens in your bedroom in the middle of the night!! If this keeps happening, I will contact the seller, as my brother had the same.issue and needed replacements. All in all, good value, a helpful security deterrent and they adhere well to windows. ## Frequently Bought Together - Defender Ultra Slim Vibration Alarm 2 Pack - Window Alert Alarm Sensor Smash Glass Siren 130dB - Police Accredited - XFORT Viper Key Locking Cable Window Restrictor in White, Durable Window Safety Lock for Child Safety and Window 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.tw/products/610920857-defender-ultra-slim-window-alarm-2-pack-130db-vibration-sensor](https://www.desertcart.tw/products/610920857-defender-ultra-slim-window-alarm-2-pack-130db-vibration-sensor) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-06-27*