--- product_id: 167231178 title: "Navkar Systems MC-AL Wireless Door and Window Alarm, Set of 4 | Magnetic Entry Sensor with Siren for Home, Shop and Office Security | Battery Operated, No Wiring | White" brand: "navkar systems" price: "₨8310" currency: LKR in_stock: true category: "Navkar Systems" url: https://www.desertcart.lk/products/167231178-navkar-systems-mc-al-wireless-door-and-window-alarm-set store_origin: LK region: Sri Lanka --- # Wireless hassle-free setup 105 dB loud alarm 1-year battery life Navkar Systems MC-AL Wireless Door and Window Alarm, Set of 4 | Magnetic Entry Sensor with Siren for Home, Shop and Office Security | Battery Operated, No Wiring | White **Brand:** navkar systems **Price:** ₨8310 **Availability:** ✅ In Stock ## Summary > 🚪🔔 Stay one step ahead—secure every entry with a siren that speaks louder than words! ## Quick Answers - **What is this?** Navkar Systems MC-AL Wireless Door and Window Alarm, Set of 4 | Magnetic Entry Sensor with Siren for Home, Shop and Office Security | Battery Operated, No Wiring | White by navkar systems - **How much does it cost?** ₨8310 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/167231178-navkar-systems-mc-al-wireless-door-and-window-alarm-set) ## Best For - navkar systems enthusiasts ## Why This Product - Trusted navkar systems brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Battery:** Replaceable AG13 button cells with up to 1 year of standby time—security that won’t quit. - • **Multi-Point Security:** Set of 4 sensors to monitor multiple doors/windows simultaneously for full coverage. - • **Effortless Installation:** Wireless design with strong double-sided adhesive—no tools, no drilling, no stress. - • **Powerful Intrusion Alert:** 105 dB siren loud enough to be heard from 150 feet, scaring off intruders instantly. - • **Seamless Home Integration:** Standard white size blends discreetly with any décor, keeping your space stylish and safe. ## Overview The NAVKAR Wireless Door Window Open Alert System offers a set of 4 compact, wireless sensors that trigger a piercing 105 dB alarm when doors or windows are opened. Designed for easy, tool-free installation with double-sided adhesive, it provides reliable, long-lasting security powered by replaceable batteries lasting up to a year. Its sleek white design fits seamlessly into any home or office environment, delivering peace of mind with multi-point monitoring and instant intrusion alerts. ## Description (MC-AL) Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors : desertcart.in: Home Improvement ## Features - Set includes 4 sensors to monitor multiple entry points simultaneously. - Wireless design for easy and hassle-free installation. - Triggers a siren or alarm when a door or window is opened, alerting you to potential intrusions. - Standard size and white color blend seamlessly with home décor. - Provides peace of mind by helping to keep your property and loved ones safe whether you're at home or away. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07KZQ94QL | | Audible Noise | 80 Decibels | | Battery Description | Replaceable battery | | Best Sellers Rank | #54,176 in Home Improvement ( See Top 100 in Home Improvement ) #112 in Home Security Alarms | | Brand | NAVKAR SYSTEMS | | Colour | white | | Compatible Devices | Home Security System | | Control Method | App | | Country of Origin | China | | Customer Reviews | 3.7 3.7 out of 5 stars (689) | | Item Dimensions L x W x H | 10L x 10W x 5H Centimeters | | Mfr Part Number | NS-Security sensor-4 | | Model Number | NS-Security sensor-4 | | Mounting Type | Door Mount, Window Mount | | Number of Items | 1 | | Power Source | Battery Powered | | Sensor Technology | Contact Sensor | ## Product Details - **Brand:** NAVKAR SYSTEMS - **Colour:** white - **Compatible Devices:** Home Security System - **Power Source:** Battery Powered - **Product Dimensions:** 10L x 10W x 5H Centimeters ## Images ![Navkar Systems MC-AL Wireless Door and Window Alarm, Set of 4 | Magnetic Entry Sensor with Siren for Home, Shop and Office Security | Battery Operated, No Wiring | White - Image 1](https://m.media-amazon.com/images/I/51bfJBJNRVL.jpg) ## Questions & Answers **Q: What is its battery backup** A: On depend ur requirement **Q: Does it have a remote to switch it on and off?** A: No, it has inbuilt switch at the side. **Q: Can we use it on outdoor iron gate and what about waterproof?** A: Dear Sir, It's not water proof for more information please contact with our sales person on number 9416135607 Regards Sudhir Jain 9354265458 **Q: What if the adhesive weakens and one of the unit falls? Then it will keep on ringing till the battery drains disturbing the neighbours.** A: i can yes because i bought 4 units out of them only 1 is still working on a door, 2 units adhesive got off after 15 days, another 1 was a failed unit which was rinining even though power button was off and it became useless, i kept the 2 pieces attached so the ringing stops unfortunately the cost was very high 2 years ago and its non returnable and no replacement its better to find other kind of alarms rather than this ## Frequently Bought Together - MC-AL Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors - SanDisk Ultra 64GB microSDXC UHS-I, 140MB/s R, Memory Card, 10 Y Warranty, for Smartphones --- ## 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.lk/products/167231178-navkar-systems-mc-al-wireless-door-and-window-alarm-set](https://www.desertcart.lk/products/167231178-navkar-systems-mc-al-wireless-door-and-window-alarm-set) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-10-12*