WELOCK Smart Lock Door Sensor - WELOCK
WELOCK Smart Lock Door Sensor - WELOCK
WELOCK Smart Lock Door Sensor - WELOCK
WELOCK Smart Lock Door Sensor - WELOCK
WELOCK Smart Lock Door Sensor - WELOCK
WELOCK Smart Lock Door Sensor - WELOCK
WELOCK Smart Lock Door Sensor - WELOCK

WELOCK Smart Lock Door Sensor

Regular price€16,99
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Know the status of your door anytime, anywhere.

The WELOCK Door Detector Sensor is a Bluetooth door sensor designed to work with the WELOCK WiFiBox3 gateway and the free WELOCK app. Whether you're at home, in the office, or traveling, you can remotely check whether your door is open or closed in real time via your smartphone.

Key Features:

  • Open or Closed Alerts: Green light = open; Red light = closed

  • App Notifications: Get notified instantly when the door status changes

  • Works with WiFiBox: Requires WELOCK WiFiBox for cloud connectivity

  • Battery Powered: Powered by 2 × AAA batteries with ~1 year lifespan

  • Simple DIY Installation: Use included 3M adhesive strips—no tools required

  • Bluetooth 5.0: Stable wireless connection (range <10m, unobstructed)

  • Weather Resistant: Works in extreme conditions (-40°C to 65°C, 10–90% RH)

Stay Notified. Stay in Control.
Get real-time door status updates via the WELOCK app. Whether the door is open, closed, locked, or unlocked—you’re always informed. Receive instant alerts when the status changes, like when your child arrives home or a door is left ajar.

Effortless DIY Installation
Just like other WELOCK products, the Door Detector Sensor is simple to install without professional help. Its minimalist white design blends discreetly into any doorframe. Setup is guided step-by-step within the WELOCK app—no tools required.

 

Learn More
  • Ships free from Europe & UK warehouses
  • 30-Day Money-Back Guarantee
  • 2 years Hassle-Free Warranty
  • Lifetime Customer Support

FAQs

No. The door sensor works without a smart lock. You only need the WELOCK WiFiBox3 Gateway to view real-time door status in the WELOCK app.

No drilling required. Use the included 3M adhesive strips to mount the sensor on the door and frame. Align the arrows, and ensure the two parts are within 20mm for accurate detection

No. It runs on 2 AAA batteries with ultra-low power consumption, lasting up to one year under typical daily usage.

Yes. When battery power 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 warning.

Yes. One WiFiBox can connect to multiple WELOCK devices, including door sensors and smart locks. All connected devices can be managed and monitored through the WELOCK App.

For a step-by-step installation guide, please refer to our detailed blog post here:

👉 How to install a door and window sensor

It covers sensor placement, alignment, tips to avoid misdetection, and troubleshooting—all with images.

Please click here to download the WELOCK door sensor user manual.