Wireless Door Open Contact Sensor Alarm
Limited stock – order now. Compare the regular price of £19.99 with the sale price of £13.99, saving you £6.00 (30%).
The Wireless Door Open Contact Sensor Alarm offers a reliable solution for monitoring doors and windows in your home or business. Featuring a compact design, the sensor measures just 3.0 x 1.0 x 0.60 inches, making it easy to install discreetly. The included plug-in receiver operates on AC power and delivers adjustable volume levels up to 110 dB, allowing you to customize alerts according to your environment.
With a range of 400 feet, this system can cover multiple entry points, pairing up to 20 door magnetic sensors with a single receiver. The elegant selection of 58 chimes ensures you can find a sound that suits your preference. Designed for easy installation, all necessary components are included, eliminating the need for additional tools. Simply plug in the receiver and attach the sensor with adhesive or screws for a reliable alert system tailored to your needs. This alarm serves as an effective deterrent for unauthorized access, providing peace of mind for families and businesses alike.
Features
Discover the key features that enhance functionality and performance.
- Compact dimensions of 10.7 x 7.6 x 6.4 cm make it easy to install in various locations.
- Lightweight design at just 130 g allows for versatile mounting options without strain.
- Plug-in bell receiver operates on AC power (100-240V) for consistent performance.
- Door sensor alarm chime is battery-powered for reliable operation even during power outages.
- Compatible with a wide voltage range of 12 Volts (AC) for use in different electrical systems.
- Easy installation with included components such as screws and screw locks.
- User-friendly design with a straightforward manual for quick setup and operation.
- Durable ABS material ensures longevity and resilience against everyday use.
Benefits
This product enhances productivity by streamlining tasks and improving organization.
- Enhanced safety with real-time notifications when doors or windows open, providing peace of mind for families and businesses.
- Customizable alerts with 58 chime options and adjustable volume levels (0-110 dB), allowing for a personalized experience based on your preferences.
- Easy installation process with all necessary hardware included, enabling quick setup without the need for professional assistance.
- Long-range operation of up to 400 feet, ensuring coverage throughout larger homes or retail spaces.
- Versatile design allows pairing of up to 20 door sensors with a single receiver, offering flexibility to expand your security system as needed.
- Compact and discreet sensor size (3.0 x 1.0 x 0.60 inches) facilitates installation in various indoor locations without being obtrusive.
- Energy-efficient with a battery life of 1-2 years for the door sensor, reducing the hassle of frequent battery replacements.
- Mute mode feature allows silent operation, perfect for homes with sleeping infants or during quiet times, while still providing visual alerts through LED indicators.
- User-friendly memory function retains your last selected chime even after power interruptions, ensuring consistent performance.
- Multi-colour LED indicators assist those with hearing impairments in detecting alerts, enhancing accessibility for all users.
Specifications
- Part Number: M520+D015 W-1
- Package Dimensions: 10.7 × 7.6 × 6.4 cm
- Model: M520+D015-W
- Size: 1 Receiver + 1 Sensor
- Colour: White
- Material: ABS
- Power Source: AC
- Voltage: 12 Volts (AC)
- Weight: 130 g
- Batteries Required: No
- Included Components: 1 × Plug-in Bell Receiver, 1 × Door Sensor Alarm Chime, 1 × User Manual, 2 × Screws, 2 × Screw Lock, 2 × Taps
- Manufacturer: SECRUI
Hassle-Free 30-Day Return Policy
At our store, we believe in making your shopping experience as enjoyable as possible With our 30-day return policy, you can shop with confidence knowing that if you’re not completely satisfied with your purchase, you can return it hassle-free. Whether it’s the wrong size or just not what you expected, we’ve got you covered. Our friendly team is here to assist you every step of the way, ensuring a smooth return process. So go ahead, shop worry-free
Quick checklist (to keep returns swift):
- Unused and in the same condition as received.
- In the original, undamaged retail packaging.
- No tape or shipping labels on the retail box — place it inside a secure outer mailing bag/box.
- All accessories, manuals and inserts included.
- Pack in a secure outer shipping bag/box so the retail box isn’t marked.
In short: please return the item as it was received. Faulty items are exempt from packaging rules. Your statutory rights are unaffected.
Reliable and Fast Delivery with Royal Mail 48-Hour Service
Experience the peace of mind that comes with our Royal Mail 48-hour service, ensuring your parcels are delivered swiftly and reliably. Whether you’re sending important documents or gifts, trust in a delivery service that prioritizes speed without compromising on quality. With a commitment to punctuality, our 48-hour option guarantees that your items arrive when you need them most, making it the perfect choice for urgent shipping needs. Choose Royal Mail for a dependable delivery experience you can count on every time.
Buy with Confidence
When you choose our Wireless Door Open Contact Sensor Alarm, you’re not just investing in security; you’re securing peace of mind. Our product is crafted with the highest standards of quality, ensuring reliability and durability for your home or business. With easy installation and user-friendly features, you can trust that this alarm system will effectively protect your loved ones and valuable possessions. Plus, our dedicated customer support team is always ready to assist you with any questions or concerns, ensuring that your experience is smooth and hassle-free. Enjoy the confidence that comes with a trusted brand and a product designed to keep you safe. Choose wisely, choose our Wireless Door Open Contact Sensor Alarm.


Dale C. –
This is an excellent dual door opened alert system with long range and multiple tones selectableVERY simple to install using the supplied perfect shaped sticky pads (or supplied screws)High quality electronics and plastic mouldings – if you need a professional door opened alert system – choose this 5* productAlso, excellent and fast responding customer service from the manufacturer via Discount Delights messaging, if you have any questions about the productDefiantly recommended – feedback by me, an independent retail purchaser of this product via Discount Delights UK
J –
Had my old alarm removed but still needed a door chime of some description.This was easy to set up, has plenty of chime choices, not necessarily the best ones but still lots of choice nonetheless.It’s nice and loud too so it doesn’t matter where you are in the house, you’ll still here hear it.
Robert Neville –
Brought this for my father in law so that he knew when someone was opening his door. Works really well too. It was easy enough to fit. The only issue I had was that he has a upvc door that sits proud of the frame. I solved the problem with a spacer to bring the sensor and magnet back in line with each other so that it could work efficiently. And it does.
Fred –
Thankfully this can be screwed in – the main body of it at least – which is a definite bonus because if you rely on the sticky back attached to it you will be very disappointed. I didn’t want to screw in until I was happy it worked well and it fell off the very first time I closed the door. The smaller piece doesn’t include screws but that has held, so far.I have the main body attached to my business front door to alert when customers come in, with the sound part in the kitchen at the back of the shop – a distance of around 20 metres and it works perfectly. I had read some people say they couldn’t get it to connect but I had no issues. I plugged it in, opened the door and it worked straight away. I haven’t tried to see if I could get the different sounds as I am happy with the generic ding-dong so can’t comment on how easy/difficult that is but if you’re happy to have a ding-dong then plug it in and away you go.
castleford domestic –
So easy to install. I did this while working in the office. We needed this as working in the back office cannot always hear customers coming into the shop. So many different music modes and volume adjustment is great.
Kindle Customer –
good distance between alarm and the alerter