The Meross MSG100 (HK) is a Wi-Fi-enabled relay bypass system utilizing a MediaTek SoC for 2.4GHz network management. Technical specifications indicate the device functions as a mechanical bypass for garage motors, mimicking a wall button press through momentary circuit closure. Physical state detection is provided by a wired magnetic reed switch, which eliminates the battery maintenance associated with tilt sensors.
Aggregated specification data confirms native support for HomeKit, Alexa, and Google Home protocols. Material analysis of the hardware identifies it as an ODM design shared with the Refoss brand, though the HK variant includes specific HomeKit authentication chips. For Chamberlain or LiftMaster motors with encrypted signals, an additional RJO accessory is required to bridge the communication gap.
Monitoring capabilities include:
- Local Control: Native HomeKit support for offline operation.
- Verification: Real-time open/closed status via magnetic sensor.
- Compatibility: Broad support for non-encrypted "dumb" motors.
If the requirement for running a long sensor wire along the door rail is a structural constraint, the Smart Garage Control Hub offers a wireless accelerometer-based alternative.
This hardware belongs to the smart home control category, providing a bridge between legacy mechanical systems and digital ecosystems.
