--- product_id: 47367952 title: "Wireless Door /Window contact sensor,Forrinx Magnetic Sensor Compatible with Alexa Wireless Smart Home Security Alarm System DIY Kit,Battery Operated(White)" brand: "forrinx" price: "FREE" currency: GBP in_stock: false category: "Home Improvement" url: https://www.desertcart.co.uk/products/47367952-wireless-door-window-contact-sensor-forrinx-magnetic-sensor-compatible-alexa store_origin: GB region: United Kingdom --- # Wireless Door /Window contact sensor,Forrinx Magnetic Sensor Compatible with Alexa Wireless Smart Home Security Alarm System DIY Kit,Battery Operated(White) **Brand:** forrinx **Price:** FREE **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Wireless Door /Window contact sensor,Forrinx Magnetic Sensor Compatible with Alexa Wireless Smart Home Security Alarm System DIY Kit,Battery Operated(White) by forrinx - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/47367952-wireless-door-window-contact-sensor-forrinx-magnetic-sensor-compatible-alexa) ## Best For - forrinx enthusiasts ## Why This Product - Trusted forrinx brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Product descriptionThe window/door sensor can be installed on doors,windows,and anywhere that can open and close to monitor your home.Specification:  Function:Detecting the open and close of the door and window to monitor your home Wireless transmitting distance:Up to 80m(in the open area ) Installation gap:≤10mm between 2 parts Operating voltage: 3V DC (1×CR1632 Battery)  Transmitting frequency:433.92MHZ  Operating current:3uA(standby), 8uA(Transmitting)  Working temperature:-20℃ ~ +50℃  Working Humidity:≤85% Mounting Ways:Choose a proper way in your door/window,we suggest you do not mount the sensor on the door/window which made of metal,because it will disturb the signal and shorten the distance of receive the signal.Clean up the place you want to mount the contact sensor,tear the tape.(suggest to stick the half with magnetic stripe in your half door/window which often to be open)Four Modes: Normal Mode:In arm mode,when the sensor is triggered,system will alarm.In disarm mode,when the sensor is triggered,system will not alarm.Home(Bypass)Mode:In home mode,the sensor will not be triggered while alarming,this will allow user to move freely at home.24 Hours Mode:Regardless the system is armed or disarmed,when the sensor is triggered,system will alarm at once.Delay Mode:In arm mode,when the sensor is triggered,system will alarm after the entry delay time you have setPackage InformationA pair of wireless door/windows contact sensors(CR1632 Battery included)worry-free 12-month warranty and friendly customer service ## Features - Remotely Control:Works with Alexa for voice and control by smartphone via free APP(Home Security Alarm Hub kit required, Alexa device and Home Security Alarm Hub kit sold separately) - Totally Wireless:This sensor is battery operated(battery included),battery life up to 3 years.Completely wireless communication specially designed for the smart hub.Communication range up to 80m/260feet (the distance from the sensor to the hub) - Easy to install:Easily mounted by adhesive,type to window or door. Ideal entry warning for homes, apartments, mobile homes, offices, hotel rooms, garages,and anywhere that can open and close - Magnetic Sensor Switch:Designed to trigger the alarm when a door or window is opened. A receiver can be paired with multiple contact sensors, so if you have more than one area you would like to monitor, just DIY and fulfill your needs - Package Included:A pair of wireless door/windows contact sensors(CR1632 Battery included),worry-free 12-month warranty and friendly customer service - ›See more product details ## Images ![Wireless Door /Window contact sensor,Forrinx Magnetic Sensor Compatible with Alexa Wireless Smart Home Security Alarm System DIY Kit,Battery Operated(White) - Image 1](https://m.media-amazon.com/images/I/317K+UKjAbL.jpg) ![Wireless Door /Window contact sensor,Forrinx Magnetic Sensor Compatible with Alexa Wireless Smart Home Security Alarm System DIY Kit,Battery Operated(White) - Image 2](https://m.media-amazon.com/images/I/4100bq3hGZL.jpg) ![Wireless Door /Window contact sensor,Forrinx Magnetic Sensor Compatible with Alexa Wireless Smart Home Security Alarm System DIY Kit,Battery Operated(White) - Image 3](https://m.media-amazon.com/images/I/51CenDUgRdL.jpg) ![Wireless Door /Window contact sensor,Forrinx Magnetic Sensor Compatible with Alexa Wireless Smart Home Security Alarm System DIY Kit,Battery Operated(White) - Image 4](https://m.media-amazon.com/images/I/5144WWmV1kL.jpg) ![Wireless Door /Window contact sensor,Forrinx Magnetic Sensor Compatible with Alexa Wireless Smart Home Security Alarm System DIY Kit,Battery Operated(White) - Image 5](https://m.media-amazon.com/images/I/51sYV428U3L.jpg) --- ## 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.co.uk/products/47367952-wireless-door-window-contact-sensor-forrinx-magnetic-sensor-compatible-alexa](https://www.desertcart.co.uk/products/47367952-wireless-door-window-contact-sensor-forrinx-magnetic-sensor-compatible-alexa) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*