Aqara Vibration Sensor T1 (VB-S01D), White, Triple Tap Automation, Three Sensitivity Adjustment, Zigbee 3.0 The Aqara Vibration Sensor T1 is embedded with a high precision acceleration sensor, and it detects vibrations, tilting, and drops of the objects it's attached to. It's perfect for security, acting as an alarm or triggering automation to safeguard your home and belongings.