BroadLink SR4D Door Sensor – Smart Security for Every Entry
Condition: Open-box / used · Grade A
Grade A – Open Box / Excellent Condition
Open-box or excellent-condition product. Functional, with little or no visible wear. Very minor cosmetic signs may exist.
الدرجة A – Open Box / حالة ممتازة
منتج Open Box أو بحالة ممتازة جدًا، كامل الوظائف، وقد يكون عليه آثار استخدام طفيفة جدًا أو بدون آثار واضحة.
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Delivery: Normally 2–5 business days after order confirmation. Shipping fees are calculated by location and order size/weight and shown at checkout.
التوصيل: عادةً خلال 2–5 أيام عمل بعد تأكيد الطلب. يتم احتساب مصاريف الشحن حسب العنوان وحجم/وزن الطلب وتظهر عند إتمام الطلب.
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BroadLink SR4D Door Sensor – Smart Security for Every Entry
No Hub Needed
Description
Enhance your home’s security with the BroadLink SR4D Door Sensor, a compact and reliable smart sensor that alerts you instantly when doors or windows open or close. Whether you’re at home or away, this battery-powered sensor keeps you informed through your smart home system. It's the perfect addition to your smart security setup—easy to install, seamlessly integrates with BroadLink devices, and works effortlessly via the BroadLink app.
Key Features
✅ Real-Time Alerts
Get notified the moment a door or window is opened or closed.
✅ Smart Home Integration
Works seamlessly with BroadLink RM4 Pro and BroadLink app for home automation.
✅ Easy Installation
Peel-and-stick setup with no need for wiring or complex tools.
✅ Battery-Powered Convenience
Runs on a long-lasting battery, offering months of maintenance-free operation.
✅ Compact & Discreet Design
Blends neatly with any home décor without drawing attention.
Perfect For
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Enhancing smart home security
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Monitoring entrances remotely
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Automating lighting or alarms with BroadLink scenes
Specifications Table
| Feature | Details |
|---|---|
| Compatibility | BroadLink RM4 Pro, BroadLink App (iOS/Android) |
| Connectivity | RF 433MHz |
| Power Source | Built-in Battery (CR2032 or equivalent) |
| Installation Method | Adhesive Mount |
| Dimensions | Compact, fits most door/window frames |
| Usage | Indoor |
| What’s in the Box | Sensor unit, magnet, adhesive pads, user manual |
Order Processing
- Orders are normally processed within 24 business hours after order confirmation.
- Business days are Saturday to Thursday.
Delivery
- Delivery normally takes 2–5 business days after order confirmation, depending on the governorate.
- Shipping fees are calculated based on delivery location and order size/weight and are shown at checkout before confirmation. We do not advertise general free shipping.
Returns
- Rebuy Box provides an easy, free return service during the first 7 days from delivery for eligible products, subject to the Refund Policy.
- This additional service does not limit statutory consumer rights under applicable Egyptian law.
Why Rebuy Box?
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Discover more in our FAQ
What does "OPEN-BOX" mean?
An Open-Box or used product is individually inspected before listing and assigned a Grade based on its actual condition. The product page must disclose its Grade and any known issue, missing item, or functional exception.
Grade D specifically means a clear, product-specific exception or limitation has been disclosed. It does not automatically mean that every Grade D product is defective, for parts, sold as-is, or requires repair.
Each product's own Grade, known issue, accessories status, and warranty treatment are the information to rely on before purchase.