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What You'll Need
- Aqara Contact Sensor T1
- Aqara Hub (M1S, M2, M3, or compatible)
- Smartphone with Aqara Home app
- CR1632 battery (included)
- Adhesive mounting tape (included)
Step-by-Step Setup
- Ensure hub is ready: Your Aqara hub must be set up and online in the Aqara Home app.
- Remove battery tab: Pull the plastic tab from the sensor to activate the battery.
- Open Aqara Home app: Navigate to your hub and tap "Add accessory."
- Select Contact Sensor T1: Choose from the accessory list.
- Enter pairing mode: Press and hold the reset button on the sensor for 5 seconds until the LED blinks.
- Complete pairing: Wait for the sensor to appear in the app.
- Mount the sensor: Clean the surface and apply adhesive tape. Mount the larger piece on the frame, magnet on the moving part (door/window).
- Align properly: The magnet should align with the marked area on the sensor when closed.
- Test operation: Open and close the door/window to verify detection.
Key Features
- Door/window open/close detection
- Zigbee 3.0 connectivity
- Compact design
- Long battery life (up to 2 years)
- Automation triggers
- HomeKit, Alexa, Google compatible (via hub)
- Activity history
- Multiple mounting options
Troubleshooting
- Not pairing: Ensure hub is online. Press reset button for full 5 seconds. Move sensor closer to hub during pairing.
- Status not updating: Check alignment—magnet must be within 15mm of sensor when closed. Verify sensor is online in app.
- Battery low warning: Replace CR1632 battery. Battery life depends on frequency of open/close events.
- Adhesive not holding: Surface must be clean and dry. Use alternative mounting (screw holes available on some models).
- Gap too large for magnet: Use the included spacer or reposition for closer alignment.