WELOCK Smart Lock Door Sensor PRODUCT MODEL:Door Sensor Easy to replace the existing

Easy to replace the existing lock cylinder in your front door or apartment door without drilling

Smart Access & Smart Home ControlManage users

a temporary password

Red light = closed

enter a personal PIN code

WELOCK Smart Lock Door Sensor PRODUCT MODEL:Door Sensor Easy to replace the existingKnow 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