--- product_id: 553565673 title: "WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button" brand: "wolf guard" price: "£0.40" currency: GBP in_stock: true reviews_count: 5 url: https://www.desertcart.co.uk/products/553565673-wolfguard-wolf-guard-433mhz-mc-03b-door-window-sensor-home store_origin: GB region: United Kingdom --- # Compact 3"x1"x0.5" & 2.3"x0.5"x0.3" sizes 80m wireless range @ 433.92MHz 2+ years battery life (CR2032) WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button **Brand:** wolf guard **Price:** £0.40 **Availability:** ✅ In Stock ## Summary > 🚪🔒 Elevate your home security with sleek, smart sensing power! ## Quick Answers - **What is this?** WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button by wolf guard - **How much does it cost?** £0.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/553565673-wolfguard-wolf-guard-433mhz-mc-03b-door-window-sensor-home) ## Best For - wolf guard enthusiasts ## Why This Product - Trusted wolf guard brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Power:** Built-in CR2032 battery delivers over 2 years of uninterrupted protection. - • **Reliable 433MHz Signal:** Robust 80-meter wireless range ensures your alarm system never misses a beat. - • **Ultra-Thin Patent-Design:** Sleek, modern sensor fits discreetly on any door or window frame. - • **Instant Alert Sensitivity:** Triggers alarm within 15mm of door/window opening for real-time security. - • **Seamless Stick-On Installation:** Peel, stick, and secure your home in seconds—no tools required. ## Overview The WolfGuard MC-03B is a compact, wireless door/window sensor featuring a patented ultra-thin design, 80-meter 433.92MHz transmission range, and a built-in CR2032 battery lasting over 2 years. It installs effortlessly with peel-and-stick adhesive and instantly alerts your home alarm system within 15mm of opening, making it an essential upgrade for modern, proactive home security. ## Description Wolf-Guard wireless MC-03B door window sensor has ultra-thin modern design (appearance design has patent), suitable for various kinds of doors and windows.Emitting distance: no obstacle 80M.Emitting frequency: 433.92MHz.Emitting code: 2262 .Can work perfect with all of our alarm system,please let me know what kind of alarm system in your hand before you order. ## Features - SIZE:big 3”X1”X0.5” ,small 2.3”X0.5”X0.3” - POWERFUL: built-in DC3V,CR2032 li battery, lasts for over 2 years - BOX CONTENT: 1 transmitter and 1 magnetic bar,2 sticks,1 manual - INSTALLATION:just peal the sticker and stick it,the small must be on the big right and bottom aligned - SENSITIVE:work with home alarm system,it will send the alarm signal to control host once the door or window are opened only 15mm ## Technical Specifications | Specification | Value | |---------------|-------| | Mounting Type | Door Mount | | Maximum Range | 80 metres | | Sensor Technology | Contact Sensor | | UPC | 711005689656 | | Manufacturer | ChiTongDa | | Item model number | Door sensor | | Product Dimensions | 8 x 3 x 11 cm; 30 g | | ASIN | B077BX5NZZ | ## Product Details - **Brand:** wolf guard - **Power Source:** Battery Powered - **Number of Batteries:** 1 CR2 batteries required. (included) - **Voltage:** 3 Volts - **Control Method:** Remote ## Images ![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 1](https://m.media-amazon.com/images/I/61ewvu2XnUL.jpg) ![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 2](https://m.media-amazon.com/images/I/61PPmI6jrNS.jpg) ![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 3](https://m.media-amazon.com/images/I/61phJq2rcGL.jpg) ![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 4](https://m.media-amazon.com/images/I/71c3nbe-WxL.jpg) ![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 5](https://m.media-amazon.com/images/I/514QggXpixL.jpg) ## Customer Reviews ### ⭐⭐⭐ Non riesco ad inserirlo nell'impianto.qualcuno potrebbe spiegarlo?? *by G***. on Reviewed in Italy on 23 October 2023* Nessuna istruzione per includerlo nell'impianto ### ⭐⭐⭐ Economico ma sensibile *by M***O on Reviewed in Italy on 11 September 2023* Funzionale ed economico ma il mio esemplare ė troppo sensibile alle vibrazioni, sarebbe perfetto se si potesse tarare ### ⭐⭐⭐⭐ Ligero y práctico *by J***O on Reviewed in Spain on 6 April 2023* Es compatible con muchas estaciones de alarma. Pero recomiendo ver las indicaciones del fabricante. A mi me están funcionado bien para una eray 3000. --- ## 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/553565673-wolfguard-wolf-guard-433mhz-mc-03b-door-window-sensor-home](https://www.desertcart.co.uk/products/553565673-wolfguard-wolf-guard-433mhz-mc-03b-door-window-sensor-home) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-10*