Welock Box 3 Smart WiFi Gateway for Remote Unlocking
€99.00
Expert4House – Smart Home Automation
Welock Bluetooth Door and Window Sensor for Smart Lock
€12.90
Tax included
No review at the moment
- Real-time door status (open/closed): check in the app whether the door is open or closed, wherever you are.
- Instant notifications: get an alert when the door status changes (useful for children, offices, second homes).
- Bluetooth Door Sensor + WELOCK App: Bluetooth sensor with stable Bluetooth 5.0 connection (up to <10 m line of sight).
- Gateway required for remote control: for cloud connectivity and remote management you need the WELOCK WiFiBox3.
- No smart lock required: works even without a smart lock; the WiFiBox3 is enough to view it in the app.
- Easy no-drill installation: mounts with 3M adhesive, no tools needed; recommended gap between the two parts within 20 mm.
- Battery powered: 2× AAA with an indicative lifespan of ~1 year (typical use) + low-battery alert.
- Instant status LED: green = door open, red = door closed.
- Built to handle tough conditions: operates from -40°C to 65°C and 10–90% RH.
- Multi-device management: one WiFiBox can connect multiple WELOCK devices, including multiple door sensors.
Secure payments: cards, PayPal, bank transfer, and installments
Delivery within 48 hours: Free shipping on orders over €150 across Europe
Easy 14-day returns: follow the steps to get your refund
WELOCK Smart Door and Window Sensor: Instant Notifications and Access Control
Make your home safer and “smarter” with the WELOCK Bluetooth Door Sensor : a practical and discreet accessory that immediately alerts you when a door, window or gate is opened. It's the perfect solution if you want to keep access under control without complications: see the open/closed status directly in the app and receive instant notifications in case of opening, so you always know what's happening even when you're away from home. Ideal for families with children , second homes, offices, B&Bs and rental apartments. The sensor can be installed in a few minutes without drilling thanks to the double-sided adhesive: just position the sensor and magnet respecting the correct distance (within approximately 20 mm ) for reliable detections. If you want to take it to the next level, combine it with the WELOCK WiFiBox3 gateway : this way you can obtain remote control , consult the event history and create more centralized management of your WELOCK devices. Plus, with smart integration, you can turn alerts into practical help for your routine: for example, on a baby gate, you can receive an immediate alert and, if configured in your ecosystem, even a voice alert via an assistant. In short: a small device that makes a big difference. If you're looking for a simple way to increase security and access control, the WELOCK Door Sensor is a smart purchase: quick installation, helpful notifications, and convenient app management, with the option to expand everything with WiFiBox3 for a truly complete experience.
Instant smart notifications: alert on app
Remote control with WiFiBox3: in-app management
This feature allows you to take the sensor to a “completely smart” level: by pairing the WELOCK Bluetooth Door Sensor with the WELOCK WiFiBox3 gateway, you can manage the door status directly from the app even when you're not at home. The WiFiBox3 connects to the 2.4GHz Wi-Fi network and acts as a bridge between the sensor and your smartphone, so you can centrally check whether the door is open or closed , receive alerts, and monitor access and rooms more conveniently. It's an ideal solution for second homes, B&Bs, offices, and rental apartments , where you want to know what's happening even remotely. In short: with WiFiBox3 , you transform the sensor into a more complete monitoring system, with remote control and smart management always at your fingertips via the app.
In-app event history + precise installation
Versatile use: sensor for doors, windows and cabinets
The WELOCK Door Sensor is designed to be useful in multiple situations, not just at the front door. Thanks to its compact size and simple installation, you can also apply it to windows , cabinet and furniture doors , display cases , as well as gates and child barriers . This way you can intelligently monitor the "sensitive" points of your home and receive alerts when something is opened, closed, or moved. This versatility is perfect for both home use (child safety, window control, home access) and for practical contexts such as offices, B&Bs, and rental apartments , where it is useful to know if a window has been left open or if a door has been opened at unexpected times.
Intrusion Alert: Instant notification if the door is opened
This feature is designed to increase security in a simple way: when the door (or window frame) is opened , the WELOCK Door Sensor immediately detects the change in status and displays the event in the app, so you can know in real time if someone is entering or if a door has been left open. In the event of suspicious attempts, the alert allows you to react faster: you can immediately check the door's status and, if you have other smart devices (cameras, sirens, lights), you can activate your security routine.
Security and voice alerts with Alexa and Google
By installing the WELOCK Door Sensor on a baby gate , an internal door, or a “sensitive” access point, you can receive an immediate alert when it is opened. And if you pair it with the WELOCK WiFiBox3 , you can integrate the system with Alexa or Google Assistant to also receive a voice alert at home, for example: “The baby gate is open!” This way you don't have to constantly check: the assistant notifies you immediately, even if you are in another room.
Frequently Asked Questions
No. The door sensor works without a smart lock. You only need the WELOCK WiFiBox3 Gateway to view the door's real-time status in the WELOCK app.
No drilling required. Use the included 3M adhesive strips to mount the sensor to the door and frame. Align the arrows and ensure the two parts are within 20 mm for accurate detection.
No. It runs on 2 AAA batteries with ultra-low power consumption, which last up to a year under normal daily use.
Yes. When the battery is low, the red LED on the sensor will flash 5 times, indicating it's time to replace the batteries. The WELOCK app may also display a device status alert.
Yes. A WiFiBox can connect to multiple WELOCK devices, including door sensors and smart locks. All connected devices can be managed and monitored via the WELOCK app.
For a detailed installation guide, see our detailed blog post here:
Standard deliveries to Italy generally take 24-48 hours from the time the package leaves the warehouse.
Orders confirmed by 3:30 PM on weekdays (Monday-Friday) are processed and shipped the same day.
Orders placed after 3:30 PM or on weekends or public holidays will be processed on the next working day.
Yes, we ship internationally to the European Union and several non-EU countries via couriers such as UPS Standard and DHL Express.
For the EU, with UPS Standard the average times are 2-3 working days .
With DHL Express, usually 1-2 business days .
Welock-DS1BT00001
Data sheet
- Power supply
- LR03 1.5V battery
- Material
- ABS
- Working temperature
- -40°C to 60°C
- Working humidity
- 10%-90%RH
- Voice Control
- None
- Mobile application
- Welock
- Dimensions
- 95x54x22 mm
- Communication Protocol
- Bluetooth
- Magnetic Distance Control
- ≤ 20
- Bluetooth protocol
- 5.0BLE
- Bluetooth transmission distance
- About 10 meters
- Battery life
- 12 months
- Works with
- Welock
- Hub required
- Welock Wi-Fi Box (for remote control)
- Ideal for
- Sensors & detection
- Home Assistant integration
- Not integrable
Specific References
- UPC
- 693371800039
- EAN13
- 6933718000397
- MPN
- Welock DS1BT00001
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- Real-time door status (open/closed): check in the app whether the door is open or closed, wherever you are.
- Instant notifications: get an alert when the door status changes (useful for children, offices, second homes).
- Bluetooth Door Sensor + WELOCK App: Bluetooth sensor with stable Bluetooth 5.0 connection (up to <10 m line of sight).
- Gateway required for remote control: for cloud connectivity and remote management you need the WELOCK WiFiBox3.
- No smart lock required: works even without a smart lock; the WiFiBox3 is enough to view it in the app.
- Easy no-drill installation: mounts with 3M adhesive, no tools needed; recommended gap between the two parts within 20 mm.
- Battery powered: 2× AAA with an indicative lifespan of ~1 year (typical use) + low-battery alert.
- Instant status LED: green = door open, red = door closed.
- Built to handle tough conditions: operates from -40°C to 65°C and 10–90% RH.
- Multi-device management: one WiFiBox can connect multiple WELOCK devices, including multiple door sensors.
Welock Bluetooth Door and Window Sensor for Smart Lock
€12.90
Tax included
No review at the moment