What Is the SwitchBot Door Alarm Contact Sensor and What Does It Do?
The SwitchBot Door Alarm Contact Sensor is a wireless smart home device designed to monitor doors, windows, and other openings. It consists of two parts: a main sensor unit and a magnet that must stay within 1.2 inches (30mm) when closed for accurate detection. This solves security concerns by alerting users to unauthorized entry and enables automations like turning on lights in the dark via its built-in light sensor or detecting presence with motion sensing. Commonly used on entry doors, cabinets, pet gates, or medicine boxes, it guards children, elderly, or pets. Battery-powered with Bluetooth connectivity, it requires no wiring and offers easy adhesive installation. A SwitchBot Hub is needed for remote access or app notifications beyond basic local use.
What Does the SwitchBot Door Alarm Contact Sensor Work With? (Compatibility and Integrations)
The sensor has no direct native integrations with major smart home platforms without additional hardware. It connects via Bluetooth directly to the SwitchBot app for basic scenes and automations within the SwitchBot ecosystem, such as triggering other SwitchBot devices like Bots or air purifiers when a door opens. A SwitchBot Hub Mini or Hub is required for remote notifications, cloud access, and indirect integrations with voice assistants like Alexa, where it supports voice alarms and routines after app linking. Alexa compatibility is indirect via the hub and SwitchBot skill, with no native support for Google Home or Siri mentioned. Behavior relies on cloud services through the hub, with no local control options outside the SwitchBot app. Limitations include hub dependency for most features and no support for Matter, Zigbee, or Z-Wave.
Does the SwitchBot Door Alarm Contact Sensor Work With Home Assistant?
No, there is no native or direct integration with Home Assistant. SwitchBot devices like this sensor use proprietary Bluetooth, with no confirmed support via standard integrations such as Bluetooth Proxy, SwitchBot integration (which typically needs a hub for cloud polling), or others like ZHA or Zigbee2MQTT. Local control is not supported without custom workarounds, which are unreliable and not officially documented. Exposed functionality would be limited to open/closed states and basic sensors if any integration worked, but community reports do not confirm reliable operation.