--- product_id: 252996198 title: "Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | Cream" brand: "smars" price: "€ 16.30" currency: EUR in_stock: true reviews_count: 8 category: "Smars" url: https://www.desertcart.pt/products/252996198-plastic-wireless-door-window-open-alert-alarm-home-security-system store_origin: PT region: Portugal --- # 105dB piercing siren Replaceable LR44 batteries No-drill adhesive install Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | Cream **Brand:** smars **Price:** € 16.30 **Availability:** ✅ In Stock ## Summary > 🚪🔔 Secure your sanctuary with a siren that speaks louder than words! ## Quick Answers - **What is this?** Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | Cream by smars - **How much does it cost?** € 16.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/252996198-plastic-wireless-door-window-open-alert-alarm-home-security-system) ## Best For - smars enthusiasts ## Why This Product - Trusted smars brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Stick it on—no drills, no hassle, just secure - • **Discreet & Durable:** Cream plastic design resists heat, corrosion, dust, and insects - • **Long-Lasting Power:** Easily swap out batteries to keep your security uninterrupted - • **Bonus Warning Sticker:** Deters intruders before they even try, included free - • **Instant Intruder Alert:** 105dB siren cuts through noise to protect your space ## Overview The smars® Plastic Wireless Door Window Open Alert Alarm offers a powerful 105dB siren triggered by a magnetic contact sensor, ensuring immediate notification of unauthorized entry. Designed for easy, drill-free installation with adhesive backing, it features replaceable LR44 batteries for continuous protection. Its durable, cream-colored plastic housing resists environmental wear, while a free warning sticker adds an extra layer of deterrence. Ideal for home or office security, this compact alarm balances functionality with convenience. ## Description New and high quality .Environmental economy, high temperature resistant, corrosion resistant. Convenience in installation. Super environmental suitability and stability. Dustproof and insect prevention .Easily mounted by adhesive. Type to window or door. Magnetic sensor switch detects entry protecting your home or office whether you are in or out. Warning door / window sticker is supplied free in package Specifications Main frame size 2.44" x 1.18" x 0.79".Magnetic box size 2.17" x 0.43" x 0.43".Power supply 3 x 1.5V LR44 button cells (included).Button Chime, off, alarm. Sensor type Alarm, Alarm type Sound. Material Plastic-Color White Review: Does the job - Does what it says. It's not fancy but very functional. Im using it on a sliding PVC door. Sound is loude enough to scare any intruder, however if you are in another room especially with AC or TV in, you might not hear it. Considering its cost, I think it's great for all external house doors. Review: Dont buy - Wrost product … its not wrking .. plz dont buy i lost my mony ## Features - Easy installation: no need of drill, just stick to door/window by using adhesive - Sharp ear piercing sound: inbuilt siren give sharp siren sound as soon as door/window gets opened - Replaceable battery: once battery is weak just replace them by opening cover ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09STL1GDQ | | Audible Noise | 105 Decibels | | Battery Description | Alkaline | | Best Sellers Rank | #7,834 in Home Improvement ( See Top 100 in Home Improvement ) #6 in Home Security Alarms | | Brand | smars | | Built-In Media | REMOTE | | Colour | cream | | Compatible Devices | Personal Computer | | Control Method | Push Button | | Country of Origin | India | | Customer Reviews | 3.6 out of 5 stars 513 Reviews | | Item Dimensions L x W x H | 10L x 10W x 10H Centimeters | | Item Type Name | door alarm | | Item Weight | 45 Grams | | Manufacturer | msrs sales | | Model Number | Alarm-variation01 | | Mounting Type | Door Mount | | Packer Contact Information | MSRS SALES | | Power Source | Battery Powered | | Product Dimensions | 10L x 10W x 10H Centimeters | | Sensor Technology | Contact Sensor | | Voltage | 1.5 Volts | ## Product Details - **Colour:** cream - **Brand:** smars - **Power Source:** Battery Powered - **Compatible Devices:** Home Security System - **Product Dimensions:** 10L x 10W x 10H Centimeters ## Images ![Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | Cream - Image 1](https://m.media-amazon.com/images/I/41chVMOuztL.jpg) ![Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | Cream - Image 2](https://m.media-amazon.com/images/I/41+woLgmYeL.jpg) ![Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | Cream - Image 3](https://m.media-amazon.com/images/I/417X2p3KcpL.jpg) ![Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | Cream - Image 4](https://m.media-amazon.com/images/I/41RgNjxrjpL.jpg) ![Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | Cream - Image 5](https://m.media-amazon.com/images/I/517VOuerPfL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Whats the battery life** A: Bekar hai Bhai 90 rupees k battery aati hai iski isse bhadiya ek 250₹ ka aata hai usme pencil cell dalte hai mene wahi mangwaya hai mera ye toot gaya **Q: Is the alaram rings continuously or stop after a while** A: It rings continuously **Q: How many types of alarm and sound levels..??** A: One type and Alarm and Sound level only. But the sound is pretty intense which we cannot miss. **Q: What is the range of the sound of an alarm** A: Quiet loud and audible ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does the job *by A***A on 17 December 2024* Does what it says. It's not fancy but very functional. Im using it on a sliding PVC door. Sound is loude enough to scare any intruder, however if you are in another room especially with AC or TV in, you might not hear it. Considering its cost, I think it's great for all external house doors. ### ⭐ Dont buy *by R***U on 15 March 2026* Wrost product … its not wrking .. plz dont buy i lost my mony ### ⭐⭐⭐ Good product, but my pair of alarm was not working properly. *by R***L on 26 January 2023* Not working properly ## Frequently Bought Together - smars ® Plastic Wireless Door Window Open Alert Alarm Home Security System Siren | cream - Blackt Electrotech (BT51D) 120dB 4in1 Wireless Door and Window Alarm Sensor for Home and Property 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.pt/products/252996198-plastic-wireless-door-window-open-alert-alarm-home-security-system](https://www.desertcart.pt/products/252996198-plastic-wireless-door-window-open-alert-alarm-home-security-system) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-08-01*