Aqara Vibration Sensor.  

The Aqara Vibration Sensor is a smart home device designed to detect and report any vibration or movement in your home. It can be installed on doors, windows, and other surfaces and can alert you via your smartphone if any movement or vibration is detected. The sensor is small and compact and can be easily attached to any surface using adhesive tape. It is compatible with a variety of smart home platforms, including Apple HomeKit, Amazon Alexa, and Google Assistant, allowing you to monitor your home from anywhere with just your voice or through an app. The Aqara Vibration Sensor is an excellent tool for home security and can help you keep your home and loved ones safe by alerting you to any potential threats.