--- product_id: 469606613 title: "M508+D017X2 B" brand: "secrui" price: "£35.57" currency: GBP in_stock: true reviews_count: 8 category: "Secrui" url: https://www.desertcart.co.uk/products/469606613-m508-d017x2-b store_origin: GB region: United Kingdom --- # 400 ft wireless range 110 dB max volume 52 chime options M508+D017X2 B **Brand:** secrui **Price:** £35.57 **Availability:** ✅ In Stock ## Summary > 🚪🔔 Never miss a moment—security that speaks your style! ## Quick Answers - **What is this?** M508+D017X2 B by secrui - **How much does it cost?** £35.57 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/469606613-m508-d017x2-b) ## Best For - secrui enthusiasts ## Why This Product - Trusted secrui brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Sleek Design:** Mini magnetic sensors fit seamlessly anywhere—security without clutter. - • **Powerful 110 dB Volume:** Adjustable sound levels ensure you never miss a door or window opening. - • **Effortless Installation:** Plug-in receiver and adhesive or screw mount sensors get you protected in minutes. - • **Customizable Alert Sounds:** Choose from 52 elegant chimes to match your vibe or mute discreetly. - • **Ultra-Long 400 ft Wireless Range:** Stay connected across your entire home or office without dead zones. ## Overview The SECRUI Door Sensor Alarm 508+D7X2-B offers a robust 400 ft wireless range with 52 customizable chimes and up to 110 dB volume. Its compact magnetic sensors install easily via adhesive or screws, providing instant alerts when doors or windows open. Designed for home and office security, it combines convenience with powerful protection to keep your space safe and sound. ## Description SECRUI Wireless Door Open Sensor Alarm Chime, 400ft Operating Range 52 Chimes Volume with Mute Mode Led Indicators 1 Plug-in Receiver 2 Magnetic Door Alarm Sensor for Home Store Office Security Black : desertcart.co.uk: DIY & Tools Review: Great quality and protective - An excellent quality productsm. It has largely enhanced the security of our property by notifying us of any movement through the outer door. Review: Low quality - I lost the desertcart gamble - it worked until it didn't. only lasted 3 months, during which i changed the battery twice. One day out of the blue, it just started going off and wouldn't stop until i took the battery out. Then everytime you install battery again, it either constantly alarms or if you get lucky, it waits till the door opens then constantly alarms till you take the battery out. Poor quality - that's what you get with the desertcart gamble - so cheap you don't bother to refund, but my money is still wasted. ## Features - 【Wide Working Range Door Alert Sensor】:This SECRUI wireless door open chime for home is up to 400 ft in open area, magnetic door sensor alarm will automatically trigger the receiver when the magnetic strip is separated and the receiver will alerts immediately whenever the door or window is opened. - 【24/7 Lifeguard for Your Family】: This child/ home door sensor alerts when burglar opens door and helps deter break-ins(entry alert chime activates when magnetic sensor separates). - 【Mini Door Contact Sensor Alarm】: Door sensor magnetic (Size:3.0x1.0x0.60ininch), magnetic strip (Size:1.7*0.6*0.4 inch). They are small size and can be installed or placed at any indoor position to provide you with a door entry chime/alert system. - 【52 Music with Mute to Loud dB】: 5 levels of adjustable volume from 0-110 dB. Offer 52 elegant music from the traditional"Ding Dong" to various well know chimes. Memory function: keep the previous setted tune after re-plugging it. - 【Easy to install】: Just plug the doorbell receiver into any standard outlet and tear the double- sided adhesive tape which on the back of door sensor( or screw mounted) and stick them to the door or window is fine,please take the insulating paper away before using the sensor. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B2R8SQ59 | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 47,461 in DIY & Tools ( See Top 100 in DIY & Tools ) 45 in Home Security Door & Window Sensors | | Coverage | 500ft (150m) | | Customer Reviews | 3.7 3.7 out of 5 stars (147) | | Date First Available | 30 May 2022 | | Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. | | Included Components | 1* Installation accessory, 1* Plug-in Receiver, 1* User Manual, 2* Magnetic sensor(battery included) | | Installation method | Self-Adhesive, or Screw-In | | Item Weight | 170 g | | Item model number | M508+D7x2-Black | | Manufacturer | SECRUI | | Material | ABS | | Maximum range | 400 Feet | | Mounting type | Adhesive or Screw Mount | | Noise level | 110 Decibels | | Package Dimensions | 12 x 6.7 x 6.2 cm; 170 g | | Part Number | M508+D7x2-Black | | Sensor technology | Contact Sensor | ## Product Details - **Battery description:** Battery - **Brand:** SECRUI - **Colour:** Black - **Control method:** Touch - **Power source:** Battery Powered ## Images ![M508+D017X2 B - Image 1](https://m.media-amazon.com/images/I/51ojXjDis3L.jpg) ## Questions & Answers **Q: Hello. does the led indicator remain lit the whole time whilst the door / window is open? thank you.** A: No **Q: Does the transmitter make a sound or just light up?** A: The door alarm battery transmitter only lights up and does not make a sound. **Q: Is this OK to use on a outside gate?** A: Hello, This wireless door sensor is splash-proof. It can be installed outdoors as long as it is not exposed to rain. **Q: can you purchase additional sensors to add to the existing** A: Yes，you can add additional sensors. the amaozn link is https://www.amazon.co.uk/dp/B0BZV3BB82?ref=myi_title_dp. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great quality and protective *by L***S on 11 October 2025* An excellent quality productsm. It has largely enhanced the security of our property by notifying us of any movement through the outer door. ### ⭐ Low quality - I lost the Amazon gamble *by T***R on 1 November 2025* it worked until it didn't. only lasted 3 months, during which i changed the battery twice. One day out of the blue, it just started going off and wouldn't stop until i took the battery out. Then everytime you install battery again, it either constantly alarms or if you get lucky, it waits till the door opens then constantly alarms till you take the battery out. Poor quality - that's what you get with the amazon gamble - so cheap you don't bother to refund, but my money is still wasted. ### ⭐⭐⭐⭐⭐ Excellent.product *by S***Y on 20 October 2025* Just as described very useful ## Frequently Bought Together - SECRUI Wireless Door Open Sensor Alarm Chime, 400ft Operating Range 52 Chimes Volume with Mute Mode Led Indicators 1 Plug-in Receiver 2 Magnetic Door Alarm Sensor for Home Store Office Security Black - LiCB 23A A23 12V Alkaline Battery (5PCS) --- ## 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/469606613-m508-d017x2-b](https://www.desertcart.co.uk/products/469606613-m508-d017x2-b) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*